CCNA 3 Chapter 7

1. What will a wireless client transmit to discover the available WLAN networks?

probe request

2. Which function is provided by a wireless access point?

converts data from 802.11 to 802.3 frame encapsulation

3. Why is security so important in wireless networks?

Wireless networks broadcast data over a medium that allows easy access.

CCNA 3 Chapter 6

1. Refer to the exhibit. What two conclusions can be drawn from the output that is shown? (Choose two.)

Both of the directly connected routes that are shown will share the same physical interface of the router.
Inter-VLAN routing between hosts on the 172.17.10.0/24 and 172.17.30.0/24 networks is successful on this network.

2. A router has two FastEthernet interfaces and needs to connect to four VLANs in the local network. How can this be accomplished using the fewest number of physical interfaces without unnecessarily decreasing network performance?

Implement a router-on-a-stick configuration.

3. What is important to consider while configuring the subinterfaces of a router when implementing inter-VLAN routing?

The IP address of each subinterface must be the default gateway address for each VLAN subnet.

CCNA 3 Chapter 5

1. What three link types have been defined for Rapid Spanning-Tree Protocol? (Choose three.)

shared
edge-type
point-to-point

2. What Rapid Spanning Tree Protocol (RSTP) role is assigned to the forwarding port elected for every switched Ethernet LAN segment?

designated

3. How can a network administrator influence which STP switch becomes the root bridge?

Set the switch priority to a smaller value than that of the other switches in the network.

CCNA 3 Chapter 4

1. Which statement is true when VTP is configured on a switched network that incorporates VLANs?

VTP dynamically communicates VLAN changes to all switches in the same VTP domain.

2. What are two features of VTP client mode operation? (Choose two.)

unable to add VLANs
can forward VLAN information to other switches in the same VTP domain

3. Which three VTP parameters must be identical on all switches to participate in the same VTP domain? (Choose three.)

domain name
domain password
version number

CCNA 3 Chapter 3

1. What switch port modes will allow a switch to successfully form a trunking link if the neighboring switch port is in "dynamic desirable" mode?

on, auto, or dynamic desirable mode

2. Refer to the exhibit. Computer 1 sends a frame to computer 4. On which links along the path between computer 1 and computer 4 will a VLAN ID tag be included with the frame?

C, E

CCNA 3 Chapter 2

1. Which two statements about Layer 2 Ethernet switches are true? (Choose two.)

Layer 2 switches have multiple collision domains.
Layer 2 switches can send traffic based on the destination MAC address.

2. Which command line interface (CLI) mode allows users to configure switch parameters, such as the hostname and password?

global configuration mode

CCNA 3 Chapter 1

1. A network administrator is selecting a switch that will operate at the network core. Which three features should the switch support for optimum network performance and reliability? (Choose three.)

10 Gigabit Ethernet
quality of service (QoS)
hot-swappable hardware

2. Refer to the exhibit. Beginning with HR servers and workstations, a network engineer is designing a new security structure for the network. Which set of policies adheres to the hierarchical network model design principles?

Configure port security options on S1. Use Layer 3 access control features on D1 and D2 to limit access to the HR servers to just the HR subnet.

Final CCNA 2 ( I )

1. Refer to the exhibit. What two statements are true based on the output shown? (Choose two.)

- neighbors 192.168.10.9 and 192.168.10.5 have auto summary disabled
- router 3 is load balancing traffic to the 172.16.3.0 network across its serial interfaces

2. Refer to the exhibit. The network administrator issues the command no ip classless on Router1. What forwarding action will take place on a packet that is received by Router1 and is destined for host 192.168.0.26?

- The packet will be dropped.

Final CCNA 2 ( H )

1. Refer to the exhibit. The output of the show ip route command for three routers on a network is displayed. All routers are operational, pings are not blocked on this network, and no default routes are installed. Which two pings will fail? (Choose two.)
from R1 to 172.16.1.1
** from R1 to 192.168.3.1
from R2 to 192.168.1.1
from R2 to 192.168.3.1
** from R3 to 192.168.1.1
172.16.4.0/24


2. A router that uses the RIP routing protocol has an entry for a network in the routing table. It then receives an update with another entry for the same destination network but with a lower hop count. What action will the router take for this new update?
** It will append the update information to the routing table.
It will invalidate the entry for that network in the routing table.
It will replace the existing routing table entry with the new information.
It will ignore the new update.

Final CCNA 2 ( G )

1. Refer to the exhibit. The network administrator issues the command no ip classless on Router1. What forwarding action will take place on a packet that is received by Router1 and is destined for host 192.168.0.26?
•xx The packet will be dropped
• The packet will be forwarded to the gateway of last resort.
• The packet will match the 192.168.0.0 network and be forwarded out Serial 0/0.
• The packet will most closely match the 192.168.0.8 subnet and be forwarded out Serial 0/1.

2. Which three statements are true of holddown timers? (Choose three.)
• used by link state routing protocols to prevent routing loops
•xx prevent update messages from reinstating a route that may have gone bad
•xx allow routers to still forward packets to destination networks that are in holddown
• limit the number of hops a packet can traverse through the network before it is discarded
• prevent a router advertising a network through the same interface from which the network was learned
•xx permit lower metric updates received from any neighboring router to reinstate the route to a possibly down Network

Final CCNA 2 ( F )

1. Refer to the exhibit. The output of the show ip route command for three routers on a network is displayed. All routers are operational, pings are not blocked on this network, and no default routes are installed. Which two pings will fail? (Choose two.)
• from R1 to 172.16.1.1
• xxfrom R1 to 192.168.3.1
• from R2 to 192.168.1.1
• from R2 to 192.168.3.1
• xxfrom R3 to 192.168.1.1

2. A router that uses the RIP routing protocol has an entry for a network in the routing table. It then receives an update with another entry for the same destination network but with a lower hop count. What action will the router take for this new update?
• xxIt will append the update information to the routing table.
• It will invalidate the entry for that network in the routing table.
• It will replace the existing routing table entry with the new information.
• It will ignore the new update.

3. Which two statements are true for OSPF Hello packets? (Choose two.)
• They negotiate correct parameters among neighboring interfaces.
• They are used for dynamic neighbor discovery.
• They use timers to elect the designated router with the fastest link.
• xxThey are received from all routers on the network and used to determine the complete network topology.
• xxThey are used to maintain neighbor relationships.

Final CCNA 2 ( E )

1. Refer to the exhibit. All routers are running the same routing protocol. Based on the exhibit and its displayed commands, which statement is true?
-The link to the ISP is not advertised by the routing protocol process.

2. Refer to the exhibit. While trying to diagnose a routing problem in the network, the network administrator runs the debug ip rip command. What can be determined from the output of this command?
The router will be unable to ping 192.168.1.2.

3. Refer to the exhibit. Two routers are unable to establish an adjacency. What is the possible cause for this?
The hello and dead intervals are different on the two routers.

Final CCNA 2 ( D )

1. Refer to the exhibit. What happens to a packet that has 172.16.0.0/16 as the best match in the routing table that is shown?
The packet is discarded. XXX
The packet is flooded out all interfaces.
The packet is forwarded via Serial0/0/0.
The packet is forwarded via FastEthernet0/0.

2. Refer to the exhibit. OSPF is used for the routing protocol and all interfaces are configured with the correct IP addresses and subnet masks. During testing, it is found that router R1 is unable to form an adjacency with R2. What is the cause of this problem?
Both routers have been configured with incorrect router IDs.
Both routers have been configured in different OSPF areas.
Both routers have been configured with an incorrect network type.
Both routers have been configured with different hello and dead intervals. XXX

Final CCNA 2 ( C )

1. Which routing protocol maintains a topology table separate from the routing table?
IGRP
RIPv1
RIPv2
*EIGRP

2.Refer to the exhibit. All routers are running RIPv1. The two networks 10.1.1.0/29 and 10.1.1.16/29 are unable to access each
other. What can be the cause of this problem?
Because RIPv1 is a classless protocol, it does not support this access.
*RIPv1 does not support discontiguous networks.
RIPv1 does not support load balancing.
RIPv1 does not support automatic summarization.

Final CCNA 2 ( B )

1. Which three statements are true regarding the encapsulation and de-encapsulation of packets when traveling through a router? (Choose three.)
***The router modifies the TTL field, decrementing it by one.
The router changes the source IP to the IP of the exit interface.
***The router maintains the same source and destination IP.
***The router changes the source physical address to the physical address of the exit interface.
The router changes the destination IP to the IP of the exit interface.
The router sends the packet out all other interfaces, besides the one it entered the router on.

2. Refer to the exhibit. Packets destined to which two networks will require the router to perform a recursive lookup? (Choose two.)
***10.0.0.0/8
64.100.0.0/16
128.107.0.0/16
172.16.40.0/24
192.168.1.0/24
***192.168.2.0/24

Final CCNA 2 ( A )

1. Which three statements are true regarding the encapsulation and de-encapsulation of packets when traveling through a router? (Choose three.)
***The router modifies the TTL field, decrementing it by one.
The router changes the source IP to the IP of the exit interface.
***The router maintains the same source and destination IP.
***The router changes the source physical address to the physical address of the exit interface.
The router changes the destination IP to the IP of the exit interface.
The router sends the packet out all other interfaces, besides the one it entered the router on.

2. Refer to the exhibit. Packets destined to which two networks will require the router to perform a recursive lookup? (Choose two.)
***10.0.0.0/8
64.100.0.0/16
128.107.0.0/16
172.16.40.0/24
192.168.1.0/24
***192.168.2.0/24

CCNA 2 Chapter 10

1. Refer to the exhibit. Which command will advertise the 192.168.1.64/30 network but not the 192.168.1.32 network on router A?

network 192.168.1.64 0.0.0.3

2. Refer to the exhibit. EIGRP is the only routing protocol enabled on this network. No static routes are configured on this router. What can be concluded about network 198.18.1.0/24 from the exhibited output?

Packets that are destined for 198.18.1.0/24 will be forwarded to 198.18.10.6.

3. On a router running EIGRP, what database would maintain a list of feasible successors?

topology table

CCNA 2 Chapter 9

1. Refer to the exhibit. Which command will advertise the 192.168.1.64/30 network but not the 192.168.1.32 network on router A?

network 192.168.1.64 0.0.0.3

2. Refer to the exhibit. EIGRP is the only routing protocol enabled on this network. No static routes are configured on this router. What can be concluded about network 198.18.1.0/24 from the exhibited output?

Packets that are destined for 198.18.1.0/24 will be forwarded to 198.18.10.6.

3. On a router running EIGRP, what database would maintain a list of feasible successors?

topology table

4. What two actions will the EIGRP DUAL FSM take if a link to a network goes down? (Choose two.)

query neighbors for a new route
search topology table for a feasible successor

CCNA 2 Chapter 8

1. Refer to the exhibit. What protocol was used to distribute the routing information for the network 172.16.1.4?

RIPv2

2. Refer to the exhibit. A packet destined for host 128.107.0.5/16 is processed by the JAX router. After finding the static route in the routing table that matches the destination network for this packet, what does the router do next?

performs a recursive lookup to find the exit interface used to forward the packet

3. Refer to the exhibit. What parent network will automatically be included in the routing table when the three subnets are configured on Router1?

172.16.0.0/16

4. The following entry is displayed in the routing table:

R 192.168.8.0/24 [120/2] via 192.168.4.1, 00:00:26, Serial0/0/1

What type of route is this?

a level 1 ultimate network route

CCNA 2 Chapter 7

1. Refer to the exhibit. Which command will allow Router2 to learn about the 192.168.16.0/28 network?

Router1(config-router)# network 192.168.16.0

2. What is the maximum network diameter permitted by the default metric of RIPv2?

15 hops

3. Refer to the exhibit. All routers are running RIPv1. What changes will occur in the routing table of router B if a loopback interface with an address of 10.16.1.129/27 is configured on router B?

A connected route to the 10.16.1.128/27 network is added.

4. 10.0.0.0/8

127.0.0.0/8
172.16.0.0/12
192.168.0.0/16

CCNA 2 Chapter 5

1. In what two ways does SDM differ from the IOS CLI? (Choose two.)

**SDM is used for in-band management only. The IOS CLI can be used for in-band and out-of-band management.
SDM is accessed through a Telnet application. The IOS CLI is accessed through a web browser.
SDM is available for all router platforms. The IOS CLI is available for a limited number of Cisco devices.
**SDM utilizes GUI buttons and text boxes. The IOS CLI requires the use of text-based commands.
SDM is used for advanced configuration tasks. The IOS CLI is preferred for initial basic device configuration.


2. Which mode will a configured router display at login?

global configuration mode
setup mode
ROM monitor mode
**user EXEC mode

CCNA 2 Chapter 4

1. A network administrator is evaluating RIP versus EIGRP for a new network. The network will be sensitive to congestion and must respond quickly to topology changes. What are two good reasons to choose EIGRP instead of RIP in this case? (Choose two.)

EIGRP only updates affected neighbors.
EIGRP updates are partial.

2. Which event will cause a triggered update?

a route is installed in the routing table

3. Refer to the exhibit. If all routers are using RIP, how many rounds of updates will occur before all routers know all networks?

3

4. Refer to the exhibit. The routers in this network are running RIP. Router A has not received an update from Router B in over three minutes. How will Router A respond?

The Invalid timer will mark the route as unusable if an update has not been received in 180 seconds.

CCNA 2 Chapter 3

1. Which two statements correctly describe the concepts of administrative distance and metric? (Choose two.)

Administrative distance refers to the trustworthiness of a particular route.
Routes with the smallest metric to a destination indicate the best path.

2. Refer to the exhibit. Which statement correctly describes how R1 will determine the best path to R2?

R1 will install an EIGRP route using network B in its routing table because the administrative distance of EIGRP is lower than RIP.

3. Which two statements are true regarding classless routing protocols? (Choose two.)

sends subnet mask information in routing updates
allows for use of both 192.168.1.0/30 and 192.168.1.16/28 subnets in the same topology

4. Which command would the network administrator issue to determine if load balancing is in effect on a router?

show ip route

CCNA 2 Chapter 2

1. A router has one static route configured to each destination network. Which two scenarios would require an administrator to alter the static routes that are configured on that router? (Choose two.)

The destination network is moved to a different interface on the same router.
A topology change occurs where the existing next-hop address or exit interface is not accessible.

2. Which of the following is true regarding CDP and the graphic shown?

By default, Router A will receive CDP advertisements from routers B and C.

3. What happens to a static route entry in a routing table when the outgoing interface is not available?

The route is removed from the table.

4. What two devices are responsible for converting the data from the WAN service provider into a form acceptable by the router? (Choose two).

a modem
a CSU/DSU device

CCNA 2 Chapter 1

1. Which two things can be determined by using the ping command? (Choose two.)

the number of routers between the source and destination device
the IP address of the router nearest the destination device
**the average time it takes a packet to reach the destination and for the response to return to the source
**whether or not the destination device is reachable through the network
the average time it takes each router in the path between source and destination to respond


2. What are three main types of high-bandwidth connection options used by medium- to large-sized businesses? (Choose three.)

DSL
cable modem
Ethernet
**metro Ethernet
**T1
**T3

Final CCNA 1 ( I )

1 A PC can not connect to any remote websites, ping its default gateway, or ping a printer that is functioning properly on the local network segment. Which action will verify that the TCP/IP stack is functioning correctly on this PC?

Use the ipconfig /all command at the hosts command prompt.
X Use the ping 127.0.0.1 command at the command prompt.
Use the traceroute command at the command prompt to identify any failures on the path to the gateway.
Use FTP to check for connectivity to remote sites.
Download a troubleshooting tool from the PC manufacturer's website.

2 Refer to the exhibit. Which set of devices contains only intermediary devices?

X A, B, D, G
A, B, E, F
C, D, G, I
G, H, I, J

Final CCNA 1 ( H )

1. Which OSI layer does IP rely on to determine whether packets have been lost and to

request retransmission?

application

presentation

session

xx transport

2. Refer to the exhibit. Which layered network model is shown in the diagram?

Cisco

IETF

OSI

xx TCP/IP

Final CCNA 1 ( G )

1. Refer to the exhibit. Host B attempts to establish a TCP/IP session with host C. During this attempt, a frame was captured at the FastEthernet interface fa0/1 of the San Francisco router. The packet inside the captured frame has the source IP address 10.10.1.2, and the destination IP address is 10.31.1.20. What is the destination MAC address of the frame at the time of capture?
• 0060.7320.D632
• 0060.7320.D631
• 0040.8517.44C3
• 0009.B2E4.EE03
• 0010.C2B4.3421

2. What are three characteristics of CSMA/CD? (Choose three.)
• It monitors the media for presence of a data signal.
• After detecting a collision, hosts can resume transmission after a random timer has expired.
• A jam signal is used to ensure that all hosts are aware that a collision has occurred.
• Devices can be configured with a higher transmission priority.
• Data is transmitted only when the data signal is present.
• It uses a token system to avoid collisions.

Final CCNA 1 ( F )

Which three IPv4 addresses represent valid network addresses for a subnet? (Choose three.)

192.168.9.64/28

192.168.9.146/28

192.168.9.96/28

192.168.9.129/26

192.168.9.51/26

192.168.9.64/26

Refer to the exhibit. Which two facts can be determined about the topology? (Choose two.)

Four collision domains are present.

One logical network is represented.

Two broadcast domains are present.

Three networks are needed.

Three logical address ranges are required.

Final CCNA 1 ( E )

1. Refer to the exhibit. Host B attempts to establish a TCP/IP session with host C. During this attempt, a frame was captured at the FastEthernet interface fa0/1 of the San Francisco router. The packet inside the captured frame has the source IP address 10.10.1.2, and the destination IP address is 10.31.1.20. What is the destination MAC address of the frame at the time of capture?
- 0060.7320.D632
- 0060.7320.D631
- 0040.8517.44C3
- 0009.B2E4.EE03
- 0010.C2B4.3421

2. What are three characteristics of CSMA/CD? (Choose three.)
- It monitors the media for presence of a data signal.
- After detecting a collision, hosts can resume transmission after a random timer has expired.
- A jam signal is used to ensure that all hosts are aware that a collision has occurred.
- Devices can be configured with a higher transmission priority.
- Data is transmitted only when the data signal is present.
- It uses a token system to avoid collisions.

3. Refer to the exhibit. The PC, the routing table of which is displayed, is configured correctly. To which network device or interface does the IP address 192.168.1.254 belong?
- PC
- switch
- router interface fa 0/0
- router interface fa 0/1

Final CCNA 1 ( D )

1 A PC can not connect to any remote websites, ping its default gateway, or ping a printer that is functioning properly on the local network segment. Which action will verify that the TCP/IP stack is functioning correctly on this PC?

Use the ipconfig /all command at the host�s command prompt.
----> Use the ping 127.0.0.1 command at the command prompt.
Use the traceroute command at the command prompt to identify any failures on the path to the gateway.
Use FTP to check for connectivity to remote sites.
Download a troubleshooting tool from the PC manufacturer's website.


2 Refer to the exhibit. Which set of devices contains only intermediary devices?

----> A, B, D, G
A, B, E, F
C, D, G, I
G, H, I, J


3 Refer to the exhibit. When computer A sends a frame to computer D, what computers receive the frame?

----> only computer D
only computer A and computer D
only computer B, computer C, and computer D
all computers

Final CCNA 1 ( C )

Refer to the exhibit. Host A attempts to establish a TSP/IP session with host C. During this attempt, a frame was captured at the FastEthernet interface fa0/1 of router Y. The packet inside the captured frame has the IP source address 172.16.1.5 and the destination IP address is 172.16.7.24 . What is the source MAC address of the frame at the time of capture?

0040.8596.DE82

**0060.7320.B826

060.7320.D632

0010.4F74.AC09

0040.8596.DE81

exhibit. An employee wants to access the organization intranet from home. Which intermediary device should be used to connect the organization intranet to the Internet to enable this access?
hub
switch
**router
wireless access point

Final CCNA 1 ( B )

1. Refer to the exhibit. A network technician wants to connect host A to the console
of a Cisco switch to initialize the configuration.
What type of cable is required for this connection?

straight-through cable
crossover cable
rollover cable
serial cable

2. Which device should be used for routing a packet to a remote network?

access switch
DHCP server
hub
router

3. Refer to the exhibit. What is required on host A for a network technician to create the initial configuration on Router1?

an FTP client
a Telnet client
a terminal emulation program
a web browser

Final CCNA 1 ( A )

When connectionless protocols are implemented at the lower layers of the OSI model, what is usually used to

acknowledge that the data was received and to request the retransmission of missing data?

IP

UDP

Ethernet

a connectionless acknowledgement

an upper-layer, connection-oriented protocol or service

Refer to the exhibit. Each media link is labeled. What type of cable should be used to connect the different devices?

Connection 1 - rollover cable

Connection 2 - straight-through cable

Connection 3 - crossover cable

Connection 1 - crossover cable

Connection 2 - rollover cable

Connection 3 - crossover cable

Connection 1 - straight-through cable

Connection 2 - crossover cable

Connection 3 - crossover cable

Connection 1 - straight-through cable

Connection 2 - crossover cable

Connection 3 - straight-through cable

Connection 1 - crossover cable

Connection 2 - straight-through cable

Connection 3 - crossover cable

CCNA 1 Chapter 11 (C)

1. Refer to the exhibit. What command will place the router into the correct mode to configure an appropriate interface to connect to a LAN?

• UBAMA# configure terminal
• UBAMA(config)# line vty 0 4
• UBAMA(config)# line console 0
• UBAMA(config)# interface Serial 0/0/0
• xxUBAMA(config)# interface FastEthernet 0/1

2. In a Cisco router, when do changes made to the running-configuration take effect?

• after a system restart
• xxas the commands are entered
• when logging off the system
• when the configuration is saved to the startup-configuration

CCNA 1 Chapter 11 (B)

1. Refer to the exhibit. A student working in the lab selects a cable that is wired as shown. Which connection types can successfully be made with this cable? (Choose two.)
• connecting a PC to a router’s console port
• xxconnecting two routers together via their fast ethernet ports
• xxconnecting two switches together at gigabit speeds
• connecting a PC to a switch at Gigabit Ethernet speeds
• connecting two devices with the same interface type at Fast Ethernet speeds

2. Which three statements are true about the role of routers in the network? (Choose three.)
• They propagate broadcasts.
• They enlarge collision domains.
• They segment broadcast domains.
• xxThey interconnect different network technologies.
• xxEach router interface requires a separate network or subnet.
• xxThey maintain a common frame format between LAN and WAN interfaces.

3. Refer to the exhibit. A network administrator has decided to use packet capture software to evaluate all traffic from the student subnet on the way to the Internet. To ensure that all packets are captured, what network device should be used to connect the monitoring station to the network between R1 and R2?
• xxrouter
• hub
• switch
• wireless access point

CCNA 1 Chapter 11

1. Users in the network are experiencing slow response time when doing file transfers to a remote server. What command could be issued to determine if the router has experienced any input or output errors?
show running-config
show startup-config
** show interfaces
show ip route
show version
show memory


2. Refer to the exhibit. A technician applies the configuration in the exhibit to a clean router. To verify the configuration, the technician issues the show running-config command in the CLI session with the router. What lines should the technician expect to see in the router output from the show running-config command?
enable password classline console 0password ccna
enable secret ciscoenable password classline console 0password ccna
enable secret 5 $1$v0/3$QyQWmJyT7zCa/yaBRasJm0enable password classline console 0password ccna
enable secret ciscoenable password 7 14141E0A1F17line console 0password 7 020507550A
** enable secret 5 $1$v0/3$QyQWmJyT7zCa/yaBRasJm0enable password 7 14141E0A1F17line console 0password 7 020507550A

CCNA 1 Chapter 10

1. Refer to the exhibit. A student working in the lab selects a cable that is wired as shown. Which connection types can successfully be made with this cable? (Choose two.)
connecting a PC to a router’s console port
** connecting two routers together via their fast ethernet ports
connecting two switches together at gigabit speeds
connecting a PC to a switch at Gigabit Ethernet speeds
** connecting two devices with the same interface type at Fast Ethernet speed

2. Which option identifies the primary interface which would be used for initial configuration of a Cisco router?
AUX interface
Ethernet interface
serial interface
** console interface

3. What makes fiber preferable to copper cabling for interconnecting buildings? (Choose three.)
** greater distances per cable run
lower installation cost
** limited susceptibility to EMI/RFI
durable connections
** greater bandwidth potential
easily terminated

CCNA 1 Chapter 9 (B)

1. In the graphic, Host A has reached 50% completion in sending a 1 KB Ethernet frame to Host D when Host B wishes to transmit its own frame to Host C. What must Host B do?

• Host B can transmit immediately since it is connected on its own cable segment.
• Host B must wait to receive a CSMA transmission from the hub, to signal its turn.
• Host B must send a request signal to Host A by transmitting an interframe gap.
• xxHost B must wait until it is certain that Host A has completed sending its frame.

2. Ethernet operates at which layers of the OSI model? (Choose two.)

• Network layer
• Transport layer
• xxPhysical layer
• Application layer
• Session layer
• xxData-link layer

3. Which of the following describe interframe spacing? (Choose two.)

• xxthe minimum interval, measured in bit-times, that any station must wait before sending another frame
• the maximum interval, measured in bit-times, that any station must wait before sending another frame
• the 96-bit payload padding inserted into a frame to achieve a legal frame size
• the 96-bit frame padding transmitted between frames to achieve proper synchronization
• xxthe time allowed for slow stations to process a frame and prepare for the next frame
• the maximum interval within which a station must send another frame to avoid being considered unreachable

CCNA 1 Chapter 9

1. In the graphic, Host A has reached 50% completion in sending a 1 KB Ethernet frame to Host D when Host B wishes to transmit its own frame to Host C. What must Host B do?
Host B can transmit immediately since it is connected on its own cable segment.
Host B must wait to receive a CSMA transmission from the hub, to signal its turn.
Host B must send a request signal to Host A by transmitting an interframe gap.
** Host B must wait until it is certain that Host A has completed sending its frame.

2. Ethernet operates at which layers of the OSI model? (Choose two.)
Network layer
Transport layer
** Physical layer
Application layer
Session layer
Data-link layer

3. Which of the following describe interframe spacing? (Choose two.)
the minimum interval, measured in bit-times, that any station must wait before sending another frame.
the maximum interval, measured in bit-times, that any station must wait before sending another frame.
the 96-bit payload padding inserted into a frame to achieve a legal frame size
the 96-bit frame padding transmitted between frames to achieve proper synchronization
** the time allowed for slow stations to process a frame and prepare for the next frame.
the maximum interval within which a station must send another frame to avoid being considered unreachable

CCNA 1 Chapter 8 (B)

1. Which type of cable run is most often associated with fiber-optic cable?

• xxbackbone cable
• horizontal cable
• patch cable
• work area cable

2. In most business LANs, which connector is used with twisted-pair networking cable?

• BNC
• RJ-11
• xxRJ-45
• Type F

3. When is a straight-through cable used in a network?

• when connecting a router through the console port
• when connecting one switch to another switch
• xxwhen connecting a host to a switch
• when connecting a router to another router
  

CCNA 1 Chapter 8

1. Which OSI layer is responsible for binary transmission, cable specification, and physical aspects of network communication?
Presentation
Transport
Data Link
** Physical

2. An installed fiber run can be checked for faults, integrity, and the performance of the media by using what device?
light injector
** OTDR
TDR
multimeter

3. Which characteristics describe fiber optic cable? (Choose two.)
** It is not affected by EMI or RFI.
Each pair of cables is wrapped in metallic foil.
It combines the technique of cancellation, shielding and twisting to protect data.
It has a maximum speed of 100 Mbps.
It is the most expensive type of LAN cabling.