Final CCNA 4 (H)

1. Which encapsulation protocol when deployed on a Cisco router over a serial interface is only compatible with another Cisco router?

PPP
SLIP
xxxHDLC
Frame Relay

2. What is a characteristic feature of a worm?

xxxexploits a known vulnerability
attaches to executable programs
masquerades as a legitmate program
lies dormant until triggered by an event, time, or date

3.An administrator is configuring a dual stack router with IPv6 and IPv4 using RIPng. The administrator receives an error message when trying to enter the IPv4 routes into RIPng. What is the cause of the problem?

Final CCNA 4 ( G )

1.Refer to the exhibit. A network administrator is trying to configure a router to use SDM. After this configuration shown in the exhibit is applied, the SDM interface of the router is still not accessible. What is the cause of the problem?

*The username and password are not configured correctly.
The authentication method is not configured correctly.
The HTTP timeout policy is not configured correctly.
The vtys are not configured correctly.


2. Refer to the exhibit. Branch A has a non-Cisco router that is using IETF encapsulation and Branch B has a Cisco router. After the commands that are shown are entered, R1 and R2 fail to establish the PVC. The R2 LMI is Cisco, and the R1 LMI is ANSI. The LMI is successfully established at both locations. Why is the PVC failing?

The PVC to R1 must be point-to-point.
LMI types must match on each end of a PVC.
The frame relay PVCs cannot be established between Cisco and non-Cisco routers.
*The IETF parameter is missing from the frame-relay map ip 10.10.10.1 201 command.

Final CCNA 4 ( F )

1. Which of the following describes the roles of devices in a WAN? (Choose three.)

*** A CSU/DSU terminates a digital local loop.
A modem terminates a digital local loop.
A CSU/DSU terminates an analog local loop.
*** A modem terminates an analog local loop.
*** A router is commonly considered a DTE device.
A router is commonly considered a DCE device.

2. What value in the address field of a Frame Relay header identifies the destination of the frame?

CIR
DE
*** DLCI
ISDN
FRAD
PVC

Final CCNA 4 ( E )

1. A network administrator is asked to design a system to allow simultaneous access to the Internet for 250 users. The ISP for this network can only supply five public IPs. What can be used to accomplish this task?
• routable translation
• dynamic translation
• static translation
• port address translation

2. The LAN attached to the Ethernet interface of the Raleigh router shown in the graphic is addressed with private IP addresses. If one public IP is assigned to the company, which commands could be used in a configuration that allows all devices with private IPs in this network to access the Internet? (Choose two.)
• ip nat inside source list 1 interface serial0 overload
• ip nat outside source list 1 interface serial0 overload
• ip nat inside serial0
• ip nat inside source list 1 pool Raleigh overload
• ip nat inside Raleigh overload
• ip inside nat source list 1 interface serial0 Raleigh

Final CCNA 4 ( D )

1. Identify the factors that contribute to congestion on an Ethernet LAN. (Choose three.)
• improper placement of enterprise level servers
• addition of hosts to a physical segment
• replacement of hubs with workgroup switches
• increasing use of bandwidth intensive network applications
• migration to full-duplex Ethernet within the LAN

2. Which of the following are examples of TCP/IP application layer protocols? (Choose three.)
• a terminal emulation protocol that supports remote console connections with various network devices
• a protocol created by IBM that makes it easier for mainframes to connect to remote offices
• a protocol responsible for transporting electronic mail on TCP/IP networks and the Internet
• a protocol that controls the rate at which data is sent to another computer
• a protocol that exchanges network management information between a network device and a management console

Final CCNA 4 ( C )

1. What are two main components of data confidentiality? (Choose two.)
check sum
digital certificates
encapsulation
encryption
hashing

2. While troubleshooting a problem with an e-mail server, an administrator observes that the switch port used by the server shows "up, line protocol up". The administrator cannot ping the server. At which layer of the OSI model is the problem most likely to be found?
application layer
network layer
data link layer
physical layer

Final CCNA 4 ( A )

1. A network administrator is tasked with maintaining two remote locations in the same city. Both locations same service provider and have the same service plan for DSL service. When comparing download rates, noticed that the location on the East side of town has a faster download rate than the location on the West town. How can this be explained?
The West side has a high volume of POTS traffic.
The West side of town is downloading larger packets.
xxxThe service provider is closer to the location on the East side.
More clients share a connection to the DSLAM on the West side.

2. Refer to the exhibit. The network administrator creates a standard access control list to
192.168.1.0/24 network from reaching the 192.168.2.0/24 network while still permitting Internet access for networks. On which router interface and in which direction should it be applied?
interface Fa0/0, inbound
interface Fa0/0, outbound
interface Fa0/1, inbound
xxxinterface Fa0/1, outbound