1. Excessive broadcasts are generally a symptom of a problem at which layer?
data link
2. Refer to the exhibit. Users at Branch B are reporting trouble accessing a corporate website running on a server that is located at HQ. HQ and Branch A users can access the website. R3 is able to ping 10.10.10.1 successfully but not 10.10.10.2. The users at Branch B can access servers at Branch A. Which two statements are true aboutthe troubleshooting efforts? (Choose two.)
Frame Relay at R3 and R2 should be tested to narrow the scope of the problem.
An ACL entry error could cause the failure at Layer 4 in either R3 or R2.
3. What is one example of a physical layer problem?
incorrect clock rate
Tampilkan postingan dengan label CCNA Semester 4. Tampilkan semua postingan
Tampilkan postingan dengan label CCNA Semester 4. Tampilkan semua postingan
Minggu, 28 Maret 2010
CCNA 4 Chapter 7
1. Refer to the exhibit. IPv6 address 2006:1::1/64 eui-64 has been configured on the router FastEthernet0/0 interface. Which statement accurately describes the EUI-64 identifier configuration?
The configuration will derive the interface portion of the IPv6 address from the MAC address of the interface.
2. Refer to the exhibit. Which address or addresses represent the inside global address?
209.165.20.25
3. Your organization is issued the IPv6 prefix of 2001:0000:130F::/48 by your service provider. With this prefix, how many bits are available for your organization to create subnetworks?
16
The configuration will derive the interface portion of the IPv6 address from the MAC address of the interface.
2. Refer to the exhibit. Which address or addresses represent the inside global address?
209.165.20.25
3. Your organization is issued the IPv6 prefix of 2001:0000:130F::/48 by your service provider. With this prefix, how many bits are available for your organization to create subnetworks?
16
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CCNA 4 Chapter 6
1. Which two Layer 1 requirements are outlined in the Data-over-Cable Service Interface Specification (DOCSIS)? (Choose two.)
channel widths
modulation techniques
2. Which is an example of symmetric-key encryption?
pre-shared key
3. Which two statements are valid solutions for a cable ISP to reduce congestion for users? (Choose two.)
allocate an additional channel
subdivide the network to reduce users on each segment
channel widths
modulation techniques
2. Which is an example of symmetric-key encryption?
pre-shared key
3. Which two statements are valid solutions for a cable ISP to reduce congestion for users? (Choose two.)
allocate an additional channel
subdivide the network to reduce users on each segment
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CCNA 4 Chapter 5
1. Refer to the exhibit. What will be the effect of the configuration that is shown?
Users attempting to access hosts in the 192.168.30.0/24 network will be required to telnet to R3.
2. Which three parameters can ACLs use to filter traffic? (Choose three.)
protocol suite
source address
destination address
3. Refer to the exhibit. How does this access list process a packet with the source address 10.1.1.1 and a destination of 192.168.10.13?
It is dropped because it does not match any of the items in the ACL.
Users attempting to access hosts in the 192.168.30.0/24 network will be required to telnet to R3.
2. Which three parameters can ACLs use to filter traffic? (Choose three.)
protocol suite
source address
destination address
3. Refer to the exhibit. How does this access list process a packet with the source address 10.1.1.1 and a destination of 192.168.10.13?
It is dropped because it does not match any of the items in the ACL.
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CCNA 4 Chapter 4
1. What is the best defense for protecting a network from phishing exploits?
Schedule training for all users.
2. What are three characteristics of a good security policy? (Choose three.)
It defines acceptable and unacceptable use of network resources.
It communicates consensus and defines roles.
It defines how to handle security incidents.
3. The Cisco IOS image naming convention allows identification of different versions and capabilities of the IOS. What information can be gained from the filename c2600-d-mz.121-4? (Choose two.)
The software is version 12.1, 4th revision.
The IOS is for the Cisco 2600 series hardware platform.
Schedule training for all users.
2. What are three characteristics of a good security policy? (Choose three.)
It defines acceptable and unacceptable use of network resources.
It communicates consensus and defines roles.
It defines how to handle security incidents.
3. The Cisco IOS image naming convention allows identification of different versions and capabilities of the IOS. What information can be gained from the filename c2600-d-mz.121-4? (Choose two.)
The software is version 12.1, 4th revision.
The IOS is for the Cisco 2600 series hardware platform.
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CCNA 4 Chapter 3
1. Which best describes the benefit of using Frame Relay as opposed to a leased line or ISDN service?
Customers only pay for the local loop and the bandwidth they purchase from the network provider.
2. Which statement about Frame Relay subinterfaces is correct?
Point-to-point subinterfaces act like leased lines and eliminate split-horizon routing issues.
Customers only pay for the local loop and the bandwidth they purchase from the network provider.
2. Which statement about Frame Relay subinterfaces is correct?
Point-to-point subinterfaces act like leased lines and eliminate split-horizon routing issues.
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CCNA 4 Chapter 2
1. Refer to the exhibit. What can be concluded about the function of the Serial 0/0/0 interface on the router after the commands are entered?
The serial link will be closed if the number of received packets at the destination node falls below 90 percent of the packets that are sent.
2. Refer to the exhibit. While troubleshooting a serial interface, a technician enters the command show interface serial 0/0/0 . If the interface is in DCE mode, what two problems are likely to cause the indicated problem? (Choose two.)
The remote CSU or DSU has failed.
A timing problem has occurred on the cable.
The serial link will be closed if the number of received packets at the destination node falls below 90 percent of the packets that are sent.
2. Refer to the exhibit. While troubleshooting a serial interface, a technician enters the command show interface serial 0/0/0 . If the interface is in DCE mode, what two problems are likely to cause the indicated problem? (Choose two.)
The remote CSU or DSU has failed.
A timing problem has occurred on the cable.
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CCNA 4 Chapter 1
1. Which statement about WAN protocols is correct?
Most WAN protocols use HDLC or a variant of HDLC as a framing mechanism.
2. Which statement is true of the functionality of the layers in the hierarchical network model?
The distribution layer aggregates WAN connections at the edge of the campus.
3. Which WAN technology uses a fixed payload of 48 bytes and is transported across both switched and permanent virtual circuits?
ATM
Most WAN protocols use HDLC or a variant of HDLC as a framing mechanism.
2. Which statement is true of the functionality of the layers in the hierarchical network model?
The distribution layer aggregates WAN connections at the edge of the campus.
3. Which WAN technology uses a fixed payload of 48 bytes and is transported across both switched and permanent virtual circuits?
ATM
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