Exams Nepal Study Room - Computer Operators / Officer Exams

30150 + Questions

Q2 A telephone conference call is an example of which type of communications?
A. same time / same place
B. same time / different place
C. different time / different place
D. different time / same place
Q3 Which of the following computing models is not an example of distributed computing environment
A. Cloud computing
B. Parallel computing
C. Cluster computing
D. Peer to peer computing
Q4 Which of the following is not anti-viruses software?
A. NAV
B. F-Prot
C. Oracle
D. McAfee
Q5 Which of the following scenarios may lead to an irrecoverable error in a database system ?
A. A transaction writes a data item after it is read by an uncommitted transaction
B. A transaction reads a data item after it is read by an uncommitted transaction
C. A transaction reads a data item after it is written by a committed transaction
D. A transaction reads a data item after it is written by an uncommitted transaction
Q6 In a software project, COCOMO (Constructive Cost Model) is used to estimate
A. effort and duration based on the size of the software
B. size and duration based on the effort of the software
C. effort and cost based on the duration of the software
D. size, effort and duration based on the cost of the software
Q7 Which of the following is NOT true with respect to a transparent bridge and a router?
A. Both bridge and router selectively forward data packets
B. A bridge uses IP addresses while a router uses MAC addresses
C. A bridge builds up its routing table by inspect­ing incoming packets
D. A router can connect between a LAN and a WAN
Q8 Computer memory consists of
A. RAM
B. ROM
C. PROM
D. All of the above
Q9 The Most important advantage of an IC is
A. Easy replacement in case of circuit failure
B. Reduced cost
C. Extremely high reliability
D. Low power consumption
Q10 The device that can both feed data into and accept data from the computer is
A. Input output device
B. ALU
C. CPU
D. All of the Above