CompTIA Network+ Question C-28

A administrator’s network has OSPF for the internal routing protocol and has two interfaces that continue to flap. The administrator reviews the following output:
Fast ethernet 0 is up, line protocol is up
Int ip address is 10.20.130.5/25
MTU 1500 bytes, BW10000 kbit, DLY 100 usec Reliability 255/255, Tx load 1/255, Rx load 1/255 Encapsulation ospf, loopback not set
Keep alive 10
Full duplex, 100Mb/s, 100Base Tx/Fx Received 1052993 broadcasts
1258 input errors
983881 packet output, 768588 bytes
1747 output errors, 0 collisions, 423 resets

Which of the following problems would cause the interface flap?

A. Wrong IP address
B. Loopback not set
C. Bad wire
D. Incorrect encapsulation
E. Duplex mismatch

Correct Answer: E

CompTIA Network+ Question C-2

The administrator’s network has OSPF for the internal routing protocol. One port going out to the Internet is congested. The data is going out to the Internet, but queues up before sending. Which of the following would resolve this issue?
Output:
Fast Ethernet 0 is up, line protocol is up Int ip address is 10.20.130.5/25
MTU 1500 bytes, BW10000 kbit, DLY 100 usec Reliability 255/255, Tx load 1/255, Rx load 1/255 Encapsulation ospf, loopback not set
Keep alive 10
Half duplex, 100Mb/s, 100 Base Tx/Fx Received 1052993 broadcasts
0 input errors
983881 packets output, 768588 bytes
0 output errors, 0 collisions, 0 resets

A. Set the loopback address
B. Change the IP address
C. Change the slash notation
D. Change duplex to full

Correct Answer: D

Explanation:
From the output we see that the half-duplex is configured. This would not use the full capacity of ports on the network. By changing to full duplex the throughput would be doubled.
Note: All communications are either half-duplex or full-duplex. During half-duplex communication, a device can either send communication or receive communication, but not both at the same time. In full-duplex communication, both devices can send and receive communication at the same time. This means that the effective throughput is doubled and communication is much more efficient.

CompTIA A+ Question J-57

A customer would like to upgrade their onboard fast Ethernet connection to connect to their new gigabit network at the gigabit speed. Which of the following will enable them to do so?

A. Convert the user to wireless.
B. Install a 10/100/1000 NIC.
C. Update the drivers for the onboard port.
D. Flash the BIOS to unlock the Ethernet port.

CompTIA A+ Question C-52

A customer needs 4 new systems for their engineering design department. Which of the following options would BEST satisfy the client’s requirements? (Select TWO).

A. USB 3.0
B. DVI output
C. Thin client
D. Workstation
E. Fast Ethernet

Correct Answer: BD