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- Question
Error detection at the data link level is achieved by?
Options- A. Bit stuffing
- B. Hamming codes
- C. Cyclic Redundancy codes
- D. Equalization
- E. None of the above
- Correct Answer
- Cyclic Redundancy codes
- 1. Packet Switch Stream (PSS) was introduced in
Options- A. the US in 1961 (&) the UK in 1981
- B. the UK in 1980
- C. the US in 1961
- D. None of the above Discuss
- 2. Devices on one network can communicate with devices on another network via a
Options- A. file server
- B. utility server
- C. printer server
- D. gateway
- E. None of the above Discuss
- 3. Which of the following statement is incorrect?
Options- A. Gateways are assumed to know correct routes; hosts begin with minimal routing information and learn new routes from gateways.
- B. Layered protocols are designed so that layer n at the destination receives exactly the same object sent by layer n at the source.
- C. Application programs as well as all protocol software from the Internet layer upward use only IP addresses; the network interface layer handles physical addresses.
- D. All of the above
- E. None of the above Discuss
- 4. Error detection at a data link level is achieved by
Options- A. bit stuffing
- B. cyclic redundancy codes
- C. Hamming codes
- D. equalization
- E. None of the above Discuss
- 5. The network layer, in reference to the OSI model, provide
Options- A. data link procedures that provide for the exchange of data via frames that can be sent and received
- B. the interface between the X.25 network and packet mode device
- C. the virtual circuit interface to packet-switched service
- D. All of the above
- E. None of the above Discuss
- 6. You are working with a class C network. You are required to configure it for five subnets, each of which will support 25 nodes. What subnet should you use?
Options- A. 255.255.255.0
- B. 255.255.255.224
- C. 255.255.255.240
- D. 255.255.255.248
- E. 255.255.255.252 Discuss
- 7. In OSI model, which of the following layer provides error-free delivery of data?
Options- A. Data link
- B. Network
- C. transport
- D. Session
- E. None of the above Discuss
- 8. The 32-bit internet address 10000000 00001010 00000010 00011110 will be written in dotted decimal notation as
Options- A. 148.20.2.30
- B. 164.100.9.61
- C. 210.20.2.64
- D. 128.10.2.30
- E. None of the above Discuss
- 9. Which of the following is not a standard synchronous communication protocol?
Options- A. SDLC
- B. SMTP
- C. SLIP
- D. PAS
- E. None of the above Discuss
- 10. Which of the following medium access control technique is used for bus/tree?
Options- A. token ring
- B. token bus
- C. CSMA
- D. MAC
- E. None of the above Discuss
Networking problems
Search Results
Correct Answer: the UK in 1980
Correct Answer: gateway
Correct Answer: All of the above
Correct Answer: cyclic redundancy codes
Correct Answer: the virtual circuit interface to packet-switched service
Correct Answer: 255.255.255.224
Correct Answer: transport
Correct Answer: 128.10.2.30
Correct Answer: PAS
Correct Answer: token bus
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