Networking problems
- 1. The first step in troubleshooting many problems is to verify which of the following?
Options- A. The subnet mask is valid
- B. TCP/IP is installed correctly on the client
- C. The WINS server is running
- D. The BDC is operable
- E. None of the above Discuss
Correct Answer: TCP/IP is installed correctly on the client
- 2. Which of the following statement is correct?
Options- A. Buffering is the process of temporarily storing the data to allow for small variation in device speeds
- B. Buffering is a method to reduce cross-talks
- C. Buffering is a method to reduce the routing overhead
- D. Buffering is storage of data within the transmitting medium until the receiver is ready to receive
- E. None of the above Discuss
Correct Answer: Buffering is the process of temporarily storing the data to allow for small variation in device speeds
- 3. Because the configuration infor-mation for a DHCP client is received dynamically, you must use which utility to read the current configuration to verify the settings?
Options- A. PING
- B. TRACERT
- C. ARP
- D. IPCONFIG
- E. None of the above Discuss
Correct Answer: IPCONFIG
- 4. The signal to noise ratio for a voice grade line is 30.1 dB (decibels) or a power ratio of 1023:1. The maximum achievable data rate on this line whose spectrum ranges from 300 Hz to 4300 Hz is
Options- A. 6200 bps
- B. 9600 bps
- C. 34000 bps
- D. 31000 bps
- E. None of the above Discuss
Correct Answer: 31000 bps
- 5. Establishing a virtual connection is functionally equivalent to
Options- A. Connecting as virtual memory
- B. Physically connecting a DTE and DCE
- C. Placing a telephone call prior to a conversation
- D. Placing a modem prior to a conversation
- E. None of the above Discuss
Correct Answer: Placing a telephone call prior to a conversation
- 6. HDLC (High-level Data Link Control) is
Options- A. a method of determining which device has access to the transmission medium at any time
- B. a method access control technique for multiple-access transmission media
- C. a very common bit-oriented data link protocol issued by ISO.
- D. network access standard for connecting stations to a circuit-switched network
- E. None of the above Discuss
Correct Answer: a very common bit-oriented data link protocol issued by ISO.
- 7. Which of the following technique is used for Time-To-Line (TTL)?
Options- A. a technique used in best-effort delivery system to avoid endlessly looping packets.
- B. a technique used by protocols in which a lower level protocol accepts a message from a higher level protocol and places it in the data portion of the low level frame
- C. One of the pieces that results when an IP gateway divides an IP datagram into smaller pieces for transmission across a network that cannot handle the original datagram size.
- D. All of the above
- E. None of the above Discuss
Correct Answer: a technique used in best-effort delivery system to avoid endlessly looping packets.
- 8. Distributed Queue Dual Bus is a standard for
Options- A. LAN
- B. MAN
- C. WAN
- D. Wireless LAN.
- E. LAN and MAN Discuss
Correct Answer: LAN and MAN
Explanation:
This standard is part of a family of standards for local area networks (LANs) and metropolitan area networks (MANs) that deals with the physical and data link layers as defined by the ISO open systems interconnection reference model. It defines a high-speed shared medium access protocol for use over a dual, counterflowing, unidirectional bus subnetwork. The physical layer and distributed queue dual bus (DQDB) layer are required to support a logical link control (LLC) sublayer by means of a connectionless medium access control (MAC) sublayer service in a manner consistent with other IEEE 802 networks. Additional DQDB layer functions are specified as a framework for other services. These additional functions will support isochronous service users and connection-oriented data service users, but their implementation is not required for conformance.
- 9. The dialogue techniques for terminal use do not include
Options- A. questions and answers
- B. open-ended questions
- C. form fillings
- D. menu display
- E. None of the above Discuss
Correct Answer: open-ended questions
- 10. Which of the following statement is incorrect?
Options- A. if a host moves from one network to another, its IP address must change
- B. routing uses the network portion of the IP address, the path taken by packets travelling to a host with multiple IP addresses depends on the address used.
- C. IP addresses encode both a network and a host on that network, they do not specify an individual machine, but a connection to a network.
- D. All of the above
- E. None of the above Discuss
Correct Answer: All of the above
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