[output cut]
Line console 0
Exec-timeout 1 35
Password CURIOUSTABPASSWD
Login
[output cut]
What do the two numbers following the exec-timeout command mean?
Options
- A. If no command has been typed in 35 seconds, the console connection will be closed.
- B. If no router activity has been detected in 1 hour and 35 minutes, the console will be locked out.
- C. If no commands have been typed in 1 minute and 35 seconds, the console connection will be closed.
- D. If you're connected to the router by a Telnet connection, input must be detected within 1 minute and 35 seconds or the connection will be closed.
- Correct Answer
- If no commands have been typed in 1 minute and 35 seconds, the console connection will be closed.
Explanation
The
exec-timeout command is set in minutes and seconds.
More questions
- 1. Which three statements are true about the operation of a full-duplex Ethernet network?
- There are no collisions in full-duplex mode.
- A dedicated switch port is required for each full-duplex node.
- Ethernet hub ports are preconfigured for full-duplex mode.
- In a full-duplex environment, the host network card must check for the availability of the network media before transmitting.
- The host network card and the switch port must be capable of operating in full-duplex mode.
Options
- A. 1, 2, and 5
- B. 2 and 4
- C. 2, 3 and 4
- D. 5 only
Discuss
Correct Answer: 1, 2, and 5
Explanation:
Full-duplex means you are using both wire pairs simultaneously to send and receive data. You must have a dedicated switch port for each node, which means you will not have collisions. Both the host network card and the switch port must be capable and set to work in full-duplex mode.
- 2. How to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
Options
- A. Thicknet coax
- B. Thinnet coax
- C. Category 5 UTP cable
- D. Fiber-optic cable
Discuss
Correct Answer: Fiber-optic cable
Explanation:
Fiber-optic cable provides a more secure, long-distance cable that is not susceptible to EMI interference at high speeds.
- 3. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
Options
- A. Straight-through
- B. Crossover cable
- C. Crossover with a CSU/DSU
- D. Rolled
Discuss
Correct Answer: Rolled
Explanation:
To connect to a router or switch console port, you would use an RJ45 UTP rolled cable.
- 4. Which protocol does Ping use?
Options
- A. TCP
- B. ARP
- C. ICMP
- D. BootP
Discuss
Correct Answer: ICMP
Explanation:
ICMP is the protocol at the Network layer that is used to send echo requests and replies.
- 5. How should a router that is being used in a Frame Relay network be configured to keep split horizon issues from preventing routing updates?
Options
- A. Configure a separate subinterface for each PVC with a unique DLCI and subnet assigned to the subinterface.
- B. Configure each Frame Relay circuit as a point-to-point line to support multicast and broadcast traffic.
- C. Configure many subinterfaces in the same subnet.
- D. Configure a single subinterface to establish multiple PVC connections to multiple remote router interfaces.
Discuss
Correct Answer: Configure a separate subinterface for each PVC with a unique DLCI and subnet assigned to the subinterface.
Explanation:
If you have a serial port configured with multiple DLCIs connected to multiple remote sites, split horizon rules, stop route updates received on an interface from being sent out the same interface. By creating subinterfaces for each PVC, you can avoid the split horizon issues when using Frame Relay.
- 6. Which of the following describe the process identifier that is used to run OSPF on a router?
- It is locally significant.
- It is globally significant.
- It is needed to identify a unique instance of an OSPF database.
- It is an optional parameter required only if multiple OSPF processes are running on the router.
Options
- A. 1, 2 and 4
- B. 1 and 3
- C. 3 and 5
- D. All of the above
Discuss
Correct Answer: 1 and 3
Explanation:
The Process ID for OSPF on a router is only locally significant and you can use the same number on each router, or each router can have a different number-it just doesn't matter. The numbers you can use are from 1 to 65,535. Don't get this confused with area numbers, which can be from 0 to 4.2 billion.
- 7. Which two statements describe the IP address 10.16.3.65/23?
- The subnet address is 10.16.3.0 255.255.254.0.
- The lowest host address in the subnet is 10.16.2.1 255.255.254.0.
- The last valid host address in the subnet is 10.16.2.254 255.255.254.0.
- The broadcast address of the subnet is 10.16.3.255 255.255.254.0.
Options
- A. 1 and 3
- B. 2 and 4
- C. 1, 2 and 4
- D. 2, 3 and 4
Discuss
Correct Answer: 2 and 4
Explanation:
The mask 255.255.254.0 (/23) used with a Class A address means that there are 15 subnet bits and 9 host bits. The block size in the third octet is 2 (256 - 254). So this makes the subnets in the interesting octet 0, 2, 4, 6, etc., all the way to 254. The host 10.16.3.65 is in the 2.0 subnet. The next subnet is 4.0, so the broadcast address for the 2.0 subnet is 3.255. The valid host addresses are 2.1 through 3.254.
- 8. Which two of the following commands will place network 10.2.3.0/24 into area 0?
- router eigrp 10
- router ospf 10
- network 10.0.0.0
- network 10.2.3.0 0.0.0.255 area0
- network 10.2.3.0 0.0.0.255 area 0
Options
- A. 1 and 4
- B. 2, 4, and 5
- C. 2 and 5
- D. 3 and 4
Discuss
Correct Answer: 2 and 5
Explanation:
To enable OSPF, you must first start OSPF using a Process ID. The number is irrelevant; just choose a number from 1 to 65,535 and you're good to go. After you start the OSPF process, you must configure any network that you want advertised via OSPF using wildcards and the area command. Statement (4) is wrong because there must be a space after the parameter area and before you list the area number.
- 9. You have an interface on a router with the IP address of 192.168.192.10/29. Including the router interface, how many hosts can have IP addresses on the LAN attached to the router interface?
Options
- A. 6
- B. 8
- C. 30
- D. 32
Discuss
Correct Answer: 6
Explanation:
A /29 (255.255.255.248), regardless of the class of address, has only 3 host bits. Six hosts is the maximum number of hosts on this LAN, including the router interface.
- 10. Which configuration command must be in effect to allow the use of 8 subnets if the Class C subnet mask is 255.255.255.224?
Options
- A. Router(config)#ip classless
- B. Router(config)#no ip classful
- C. Router(config)#ip unnumbered
- D. Router(config)#ip subnet-zero
Discuss
Correct Answer: Router(config)#ip subnet-zero
Explanation:
A Class C subnet mask of 255.255.255.224 is 3 bits on and 5 bits off (11100000) and provides 8 subnets, each with 30 hosts. However, if the command
ip subnet-zero is not used, then only 6 subnets would be available for use.
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