CompTIA JK0-023

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CompTIA Network+ certification Sample Questions:

1. Which of the following BEST describes the difference between layer 2 switching and layer 2 routing?

A) Both routing and switching move packets between hosts on different subnets, but switching does so at a faster pace.
B) Routing moves packets between hosts on different subnets, and switching moves packets between hosts on the same subnet.
C) Switching moves packets between hosts on different subnets, and routing moves packets between hosts on the same subnet.
D) Both routing and switching move packets between hosts on the same subnet, but routing does so at a faster pace.

2. Lisa, a user, reports increased delays and timeouts when trying to reach several Internet sites. Which of the following would MOST likely be used when investigating the problem at Lisa's workstation?

A) nbtstat
B) arp
C) route
D) nslookup

3. 802.11n can operate at which of the following frequencies? (Select TWO).

A) 2.4Ghz
B) 2.4Mhz
C) 2.5Ghz
D) 5Ghz
E) 5Mhz
F) 2.5Mhz

4. Which of the following TCP/IP and OSI model layers retransmits a TCP packet if it is not received successfully at its destination?

A) The network OSI model layer and the Internet TCP/IP model layer.
B) The network OSI model layer and the transport TCP/IP model layer.
C) The transport OSI model layer and the transport TCP/IP model layer.
D) The transport OSI model layer and the Internet TCP/IP model layer.

5. Which of the following media types can carry a standard Ethernet signal for network connectivity?

A) CAT6
B) Serial
C) Parallel
D) USB

Solutions: