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- Question
Which statements are true regarding ICMP packets?
- ICMP guarantees datagram delivery.
- ICMP can provide hosts with information about network problems.
- ICMP is encapsulated within IP datagrams.
- ICMP is encapsulated within UDP datagrams.
Options- A. 1 only
- B. 2 and 3
- C. 1 and 4
- D. All of the above
- Correct Answer
- 2 and 3
ExplanationICMP is used for diagnostics and destination unreachable messages. ICMP is encapsulated within IP datagrams, and because it is used for diagnostics, it will provide hosts with information about network problems. - 1. What command is used to stop RIP routing updates from exiting out an interface but still allow the interface to receive RIP route updates?
Options- A. Router(config-if)# no routing
- B. Router(config-if)# passive-interface
- C. Router(config-router)# passive-interface s0
- D. Router(config-router)# no routing updates Discuss
- 2. Which of the following services use TCP?
- DHCP
- SMTP
- HTTP
- TFTP
- FTP
Options- A. 1 and 2
- B. 2, 3 and 5
- C. 1, 2 and 4
- D. 1, 3 and 4 Discuss
- 3. You are unsuccessful in telnetting into a remote device. What could the problem be?
- IP addresses are incorrect.
- Access control list is filtering Telnet.
- There is a defective serial cable.
- The VTY password is missing.
Options- A. 1 only
- B. 3 only
- C. 2 and 4 only
- D. All of the above Discuss
- 4. Acknowledgments, sequencing, and flow control are characteristics of which OSI layer?
Options- A. Layer 2
- B. Layer 3
- C. Layer 4
- D. Layer 7 Discuss
- 5. How many non-overlapping channels are available with 802.11g?
Options- A. 3
- B. 12
- C. 23
- D. 40 Discuss
- 6. You need to gather the IP address of a remote switch that is located in Hawaii. What can you do to find the address?
Options- A. Issue the show ip arp command on the router connected to the switch.
- B. Issue the show ip route command on the router connected to the switch.
- C. Issue the show cdp neighbor command on the router connected to the switch.
- D. Issue the show cdp neighbors detail command on the router connected to the switch. Discuss
- 7. What is the frequency range of the IEEE 802.11a standard?
Options- A. 2.4Gbps
- B. 5Gbps
- C. 2.4GHz
- D. 5GHz Discuss
- 8. How many non-overlapping channels are available with 802.11b?
Options- A. 3
- B. 12
- C. 23
- D. 40 Discuss
- 9. What is the maximum number of IP addresses that can be assigned to hosts on a local subnet that uses the 255.255.255.224 subnet mask?
Options- A. 14
- B. 15
- C. 16
- D. 30 Discuss
- 10. What are two purposes for segmentation with a bridge?
- To add more broadcast domains.
- To create more collision domains.
- To add more bandwidth for users.
- To allow more broadcasts for users.
Options- A. 1 only
- B. 2 and 3
- C. 2 and 4
- D. 4 only Discuss
More questions
Correct Answer: Router(config-router)# passive-interface s0
Explanation:
The
(config-router)#passive-interface command stops updates from being sent out an interface, but route updates are still received.
Correct Answer: 2, 3 and 5
Explanation:
SMTP, HTTP and FTP use TCP.
Correct Answer: 2 and 4 only
Explanation:
The best answers, the ones you need to remember, are that either an access control list is filtering the Telnet session or the VTY password is not set on the remote device.
Correct Answer: Layer 4
Explanation:
A reliable Transport layer connection uses acknowledgments to make sure all data is transmitted and received reliably. A reliable connection is defined by a virtual circuit that uses acknowledgments, sequencing, and flow control, which are characteristics of the Transport layer (layer 4).
Correct Answer: 3
Explanation:
The IEEE 802.11g standard provides 3 non-overlapping channels.
Correct Answer: Issue the show cdp neighbors detail command on the router connected to the switch.
Explanation:
Although option A is certainly the "best" answer, unfortunately option D will work just fine and your boss would probably prefer you to use the
show cdp neighbors detail command.
Correct Answer: 5GHz
Explanation:
The IEEE 802.11a standard runs in the 5GHz RF range.
Correct Answer: 3
Explanation:
The IEEE 802.11b standard provides 3 non-overlapping channels.
Correct Answer: 30
Explanation:
A /27 (255.255.255.224) is 3 bits on and 5 bits off. This provides 8 subnets, each with 30 hosts. Does it matter if this mask is used with a Class A, B, or C network address? Not at all. The number of host bits would never change.
Correct Answer: 2 and 3
Explanation:
Bridges break up collision domains, which allow more bandwidth for users.
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