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 CCNA Questions

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Q:

What must be configured on the network in order for users on the Internet to view web pages located on Web Server 2?

A. On router R2, configure a default static route to the 192.168.10.0 network
B. On router r2, configure DNS to resolve the URL assigned to Web Server 2 to the 192.168.10.20 address
C. On router R1, configure NAT to translate an address on the 209.165.100.0/24 network to 192.168.10.20
D. On router R1, configure DHCP to assign a registered IP address on the 209.165.100.0/24 network to Web Server 2

Answer

Answer : C

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Q:

Which of the following is correct?

A) Full- duplex Ethernet uses one pair of wires B) Full- duplex Ethernet uses two pairs of wires
C) Half- duplex Ethernet uses two pairs of wires D) Full- duplex Ethernet uses three pairs of wires
 
Answer & Explanation Answer: B) Full- duplex Ethernet uses two pairs of wires

Explanation:
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Q:

What is the maximum data rate for the 802.11g standard?

A) 6Mbps B) 11Mbps
C) 22Mbps D) 54Mbps
 
Answer & Explanation Answer: D) 54Mbps

Explanation:

The IEEE 802.11g standard provides a maximum data rate of up to 54Mbps.

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Q:

What is the administrative distance of OSPF?

A) 90 B) 100
C) 110 D) 120
 
Answer & Explanation Answer: C) 110

Explanation:

The administrative distance (AD) is a very important parameter in a routing protocol. The lower the AD, the more trusted the route. If you have IGRP and OSPF running , by default IGRP routes would be placed in the routing table because IGRP has a lower AD of 100. OSPF has an AD of 110. RIPv1 and RIPv2 both have an AD of 120, and EIGRP is the lowest, at 90.

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Q:

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?

A) Router>ping B) Router>trace
C) Router>show ip route D) Router>show interface
 
Answer & Explanation Answer: B) 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.

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0 2930
Q:

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?

A) 15 B) 16
C) 30 D) 31
 
Answer & Explanation Answer: C) 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.

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Q:

You need the IP address of the devices with which the router has established an adjacency. Also, the retransmit interval and the queue counts for the adjacent routers  need to be  checked. What command will display the required information?

A) show ip eigrp adjacency B) show ip eigrp topology
C) show ip eigrp interfaces D) show ip eigrp neighbors
 
Answer & Explanation Answer: D) show ip eigrp neighbors

Explanation:

The show ip eigrp neighbors command allows you to check the IP addresses as well as the retransmit  interval and queue counts for the neighbors that have established an adjacency.

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0 2881
Q:

If you wanted administrators to see a message when logging into the router, which command would you use?

A) message banner motd B) banner message motd
C) banner motd D) message motd
 
Answer & Explanation Answer: C) banner motd

Explanation:

The typical banner is a message of the day (MOTD) and is set by using the global configuration mode command banner motd.

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