- (Topic 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
Correct Answer:
D
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.
- (Topic 6)
A user is unable to open up websites on the Internet from a browser. The administrator determines that the workstation can ping its local gateway, but not the remote web server. At which of the following layers of the OSI model does the problem MOST likely exist?
Correct Answer:
B
- (Topic 6)
A home office has a dozen devices that need a class based DHCP device to assign addresses. The subnet only has one octet for the host portion of each device. Which of the following IP addresses would be assigned to the default gateway?
Correct Answer:
C
- (Topic 6)
A technician has terminated a cable on the datacenter with an RJ-11 connector. Which of the following applications is MOST likely being used?
Correct Answer:
D
- (Topic 6)
When Jeff, a technician, is troubleshooting a problem, which of the following is the NEXT step after verifying full system functionality?
Correct Answer:
D