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- Question
When you ping the loopback address, a packet is sent where?
Options- A. On the network
- B. Down through the layers of the IP architecture and then up the layers again
- C. Across the wire
- D. through the loopback dongle
- E. None of the above
- Correct Answer
- Down through the layers of the IP architecture and then up the layers again
- 1. The probability that a single bit will be in error on a typical public telephone line using 4800 bps modem is 10 to the power -3. If no error detection mechanism is used, the residual error rate for a communication line using 9-bit frames is approximately equal to
Options- A. 0.003
- B. 0.009
- C. 0.991
- D. 0.999
- E. None of the above Discuss
- 2. What are the most commonly used transmission speeds in BPS used in data communication?
Options- A. 300
- B. 1200
- C. 2400
- D. 9600
- E. None of the above Discuss
- 3. What can greatly reduce TCP/IP configuration problems?
Options- A. WINS Server
- B. WINS Proxy
- C. DHCP Server
- D. PDC
- E. None of the above Discuss
- 4. What is the port number for NNTP?
Options- A. 119
- B. 80
- C. 79
- D. 70 Discuss
- 5. What is the default subnet mask for a class C network?
Options- A. 127.0.0.1
- B. 255.0.0.0
- C. 255.255.0.0
- D. 255.255.255.0
- E. None of the above Discuss
- 6. Which of the following TCP/IP protocol is used for transferring electronic mail messages from one machine to another?
Options- A. FTP
- B. SNMP
- C. SMTP
- D. RPC
- E. None of the above Discuss
- 7. Frames from one LAN can be transmitted to another LAN via the device
Options- A. Router
- B. Bridge
- C. Repeater
- D. Modem Discuss
- 8. A remote batch-processing operation in which data is solely input to a central computer would require a:
Options- A. telegraph line
- B. simplex lines
- C. mixedband channel
- D. All the above
- E. None of the above Discuss
- 9. Contention is
Options- A. One or more conductors that serve as a common connection for a related group of devices
- B. a continuous frequency capable of being modulated or impressed with a second signal
- C. the condition when two or more stations attempt to use the same channel at the same time
- D. a collection of interconnected functional units that provides a data communications service among stations attached to the network
- E. None of the above Discuss
- 10. What part of 192.168.10.51 is the Network ID, assuming a default subnet mask?
Options- A. 192
- B. 192.168.10
- C. 0.0.0.5
- D. 51
- E. None of the above Discuss
Networking problems
Search Results
Correct Answer: 0.009
Correct Answer: 9600
Correct Answer: DHCP Server
Correct Answer: 119
Correct Answer: 255.255.255.0
Correct Answer: SMTP
Correct Answer: Bridge
Correct Answer: simplex lines
Correct Answer: the condition when two or more stations attempt to use the same channel at the same time
Correct Answer: 192.168.10
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