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- Question
Data link layer retransmits the damaged frames in most networks. If the probability of a frame's being damaged is p, what is the mean number of transmissions required to send a frame if acknowledgements are never lost.
Options- A. P I (K + 1)
- B. KIK (1 + F)
- C. 1/ (1 - F)
- D. K I (K - P)
- E. None of the above
- Correct Answer
- 1/ (1 - F)
- 1. There are several careers within data processing operations, including data-entry operator.
Options- A. Computer operator
- B. Programmer
- C. System Analyst
- D. Key-punch operator
- E. None of the above Discuss
- 2. Usually, it takes 10-bits to represent one character. How many characters can be transmitted at a speed of 1200 BPS?
Options- A. 10
- B. 12
- C. 120
- D. 1200
- E. None of the above Discuss
- 3. In SQL, the command(s) is(are) used to create an index for a table or cluster
Options- A. CREATE INDEX
- B. MODIFY INDEX
- C. SET INDEX TO FILE
- D. All of the above
- E. None of the above Discuss
- 4. You need to determine whether IP information has been assigned to your Windows NT. Which utility should you use?
Options- A. NBTSTAT
- B. NETSTAT
- C. IPCONFIG
- D. WINIPCFG
- E. PING Discuss
- 5. IRQ6 is typically reserved for:
Options- A. The floppy
- B. The keyboard controller
- C. LPT2
- D. The modem
- E. None of the above Discuss
- 6. Which utility is an all-purpose tool for troubleshooting TCP/IP problems?
Options- A. NBTSTAT
- B. Netstat
- C. PING
- D. Hostname
- E. None of the above Discuss
- 7. In 1985, the famous chess player David Levy beat a world champion chess program in four straight games by using orthodox moves that confused the program. What was the name of the chess program?
Options- A. Kaissa
- B. CRAY BLITZ
- C. Golf
- D. DIGDUG
- E. None of the above Discuss
- 8. A proposed network infrastructure of interconnected local, regional, and global networks that would support universal interactive multimedia communications. Select the best fit for answer:
Options- A. Internetworked enterprise
- B. Information super highway
- C. Business applications of telecommunications
- D. Client/Server networks Discuss
- 9. The difference between CAD and CAM is that CAD software is directed at product design while CAM software is:
Options- A. concerned with production and control of tool design
- B. concerned with management programs
- C. designed for communications
- D. specifically for PC-board design
- E. None of the above Discuss
- 10. Which technique is being investigated as an approach to automatic programming?
Options- A. generative CAI
- B. specification by example
- C. All of the above
- D. non-hierarchical planning
- E. None of the above Discuss
More questions
Correct Answer: Computer operator
Correct Answer: 120
Correct Answer: CREATE INDEX
Correct Answer: IPCONFIG
Correct Answer: The floppy
Correct Answer: PING
Correct Answer: CRAY BLITZ
Correct Answer: Information super highway
Correct Answer: concerned with production and control of tool design
Correct Answer: specification by example
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