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- Question
You have created a named access list called Blocksales. Which of the following is a valid command for applying this to packets trying to enter interface s0 of your router?
Options- A. (config)# ip access-group 110 in
- B. (config-if)# ip access-group 110 in
- C. (config-if)# ip access-group Blocksales in
- D. (config-if)# blocksales ip access-list in
- Correct Answer
- (config-if)# ip access-group Blocksales in
ExplanationUsing a named access list just replaces the number used when applying the list to the router's interface. ip access-group Blocksales in is correct. - 1. Which of the following is private IP address?
Options- A. 12.0.0.1
- B. 168.172.19.39
- C. 172.15.14.36
- D. 192.168.24.43 Discuss
- 2. Which statements are true regarding ICMP packets?
- They acknowledge receipt of a TCP segment.
- They guarantee datagram delivery.
- They can provide hosts with information about network problems.
- They are encapsulated within IP datagrams.
Options- A. 1 only
- B. 2 and 3
- C. 3 and 4
- D. 2, 3 and 4 Discuss
- 3. Which command will delete the contents of NVRAM on a router?
Options- A. delete NVRAM
- B. delete startup-config
- C. erase NVRAM
- D. erase start Discuss
- 4. What layer in the TCP/IP stack is equivalent to the Transport layer of the OSI model?
Options- A. Application
- B. Host-to-Host
- C. Internet
- D. Network Access Discuss
- 5. 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 Discuss
- 6. Which of the following describe the DHCP Discover message?
- It uses FF:FF:FF:FF:FF:FF as a layer 2 broadcast.
- It uses UDP as the Transport layer protocol.
- It uses TCP as the Transport layer protocol.
- It does not use a layer 2 destination address.
Options- A. 1 only
- B. 1 and 2
- C. 3 and 4
- D. 4 only Discuss
- 7. Which class of IP address provides a maximum of only 254 host addresses per network ID?
Options- A. Class A
- B. Class B
- C. Class C
- D. Class D Discuss
- 8. What protocol is used to find the hardware address of a local device?
Options- A. RARP
- B. ARP
- C. IP
- D. ICMP Discuss
- 9. What keystroke will terminate setup mode?
Options- A. Ctrl+Z
- B. Ctrl+^
- C. Ctrl+C
- D. Ctrl+Shift+^ Discuss
- 10. What is the address range of a Class B network address in binary?
Options- A. 01xxxxxx
- B. 0xxxxxxx
- C. 10xxxxxx
- D. 110xxxxx Discuss
More questions
Correct Answer: 192.168.24.43
Explanation:
Class A private address range is 10.0.0.0 through 10.255.255.255. Class B private address range is 172.16.0.0 through 172.31.255.255, and Class C private address range is 192.168.0.0 through 192.168.255.255.
Correct Answer: 3 and 4
Explanation:
Internet Control Message Protocol (ICMP) is used to send error messages through the network, but they do not work alone. Every segment or ICMP payload must be encapsulated within an IP datagram (or packet).
Correct Answer: erase start
Explanation:
The
erase startup-config command erases the contents of NVRAM and will put you in setup mode if the router is restarted.
Correct Answer: Host-to-Host
Explanation:
The four layers of the TCP/IP stack (also called the DoD model) are Application/Process, Host-to-Host, Internet, and Network Access. The Host-to-Host layer is equivalent to the Transport layer of the OSI model.
Correct Answer: 2 and 3
Explanation:
ICMP 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.
Correct Answer: 1 and 2
Explanation:
A client that sends out a DHCP Discover message in order to receive an IP address sends out a broadcast at both layer 2 and layer 3. The layer 2 broadcast is all Fs in hex, or
FF:FF:FF:FF:FF:FF. The layer 3 broadcast is
255.255.255.255, which means all networks and all hosts. DHCP is connectionless, which means it uses User Datagram Protocol (UDP) at the Transport layer, also called the Host-to-Host layer.
Correct Answer: Class C
Explanation:
A Class C network address has only 8 bits for defining hosts: 2
8 - 2 = 254.
Correct Answer: ARP
Explanation:
Address Resolution Protocol (ARP) is used to find the hardware address from a known IP address.
Correct Answer: Ctrl+C
Explanation:
You can exit setup mode at any time by using the keystroke
Ctrl+C.
Correct Answer: 10xxxxxx
Explanation:
The range of a Class B network address is
128-191. This makes our binary range
10xxxxxx.
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