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- Question
What layer of the OSI model would you assume the problem is in if you type show interface serial 1 and receive the following message? "Serial1 is down, line protocol is down."
Options- A. Physical layer
- B. Data Link layer
- C. Network layer
- D. None. It is a router problem.
- Correct Answer
- Physical layer
ExplanationIf you see that a serial interface and the protocol are both down, then you have a Physical layer problem. If you see serial1 is up, line protocol is down, then you are not receiving (Data Link) keepalives from the remote end. - 1. Which of the following commands sets a trunk port on a 2960 switch?
Options- A. trunk on
- B. trunk all
- C. switchport trunk on
- D. switchport mode trunk Discuss
- 2. Which of the following describes the creation of private networks across the Internet, enabling privacy and tunneling of non-TCP/IP protocols?
Options- A. HDLC
- B. Cable
- C. VPN
- D. IPSec
- E. xDSL Discuss
- 3. Cisco's Unified Wireless Solution provides a mesh solution. What devices do you absolutely need to purchase to run a Cisco solution?
- WCS
- Controller
- Access point
- Bridge
Options- A. 1 and 2
- B. 2 and 3
- C. 1 and 4 only
- D. 4 only Discuss
- 4. What two multicast addresses does OSPFv3 use?
- FF02::A
- FF02::9
- FF02::5
- FF02::6
Options- A. 2 only
- B. 3 only
- C. 1 and 3
- D. 3 and 4 Discuss
- 5. Which of the following commands will display the current IP addressing and the layer 1 and 2 status of an interface?
- show version
- show protocols
- show interfaces
- show controllers
- show ip interface
Options- A. 1, 2 and 4
- B. 2, 3 and 5
- C. 3 and 4 only
- D. None of the above Discuss
- 6. What is the frequency range of the IEEE 802.11b standard?
Options- A. 2.4Gbps
- B. 5Gbps
- C. 2.4GHz
- D. 5GHz Discuss
- 7. You are troubleshooting a connectivity problem in your corporate network and want to isolate the problem. You suspect that a router on the route to an unreachable network is at fault. What IOS user exec command should you issue?
Options- A. Router> ping
- B. Router> trace
- C. Router> show ip route
- D. Router> show interface Discuss
- 8. Your switch has a port status LED that is alternating between green and amber. What could this indicate?
Options- A. The port is experiencing errors.
- B. The port is shut down.
- C. The port is in STP blocking mode.
- D. Nothing; this is normal. Discuss
- 9. A network administrator needs to configure a router with a distance-vector protocol that allows classless routing. Which of the following satisfies those requirements?
Options- A. IGRP
- B. OSPF
- C. RIPv1
- D. EIGRP
- E. IS-IS Discuss
- 10. 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
More questions
Correct Answer: switchport mode trunk
Explanation:
To set a switch port to trunk mode, which allows all VLAN information to pass down the link, use the
switchport mode trunk command.
Correct Answer: VPN
Explanation:
A allows the creation of private networks across the Internet, enabling privacy and tunneling of non-TCP/IP protocols. A VPN can be set up across any type of link.
Correct Answer: 2 and 3
Explanation:
The Cisco Unified Wireless Solution is a great product, but you must purchase specialized devices. Cisco managed access points and a controller are the devices you need to purchase to run the Unified Wireless Solution.
Correct Answer: 3 and 4
Explanation:
Adjacencies and next-hop attributes now use link-local addresses, and OSPFv3 still uses multicast traffic to send its updates and acknowledgments with the addresses
FF02::5 for OSPF routers and
FF02::6 for OSPF designated routers. These are the replacements for
224.0.0.5 and
224.0.0.6, respectively.
Correct Answer: 2, 3 and 5
Explanation:
The commands
show protocols,
show interfaces, and
show ip interface will show you the layer 1 and 2 status and the IP addresses of your router's interfaces.
Correct Answer: 2.4GHz
Explanation:
The IEEE 802.11b and IEEE 802.11g standards both run in the 2.4GHz RF range.
Correct Answer: Router> trace
Explanation:
The command
traceroute (trace for short), which can be issued from user mode or privileged mode, is used to find the path a packet takes through an internetwork and will also show you where the packet stops because of an error on a router.
Correct Answer: The port is experiencing errors.
Explanation:
When you connect to a switch port, at first the link lights are orange/amber, and then they turn green, indicating normal operation. If the link light is blinking, you have a problem.
Correct Answer: EIGRP
Explanation:
In this question, we're calling EIGRP just plain old distance vector. EIGRP is an "advanced" distance-vector routing protocol, sometimes called a hybrid routing protocol because it uses the characteristics of both distance-vector and link-state routing protocols.
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.
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