NCO- Cyber Olympiad (SOF) Class 12: Questions 489 - 493 of 520

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Question 489

Question

MCQ▾

In ________ transmission, several bits of data are transmitted concurrently through separate communication lines.

Choices

Choice (4)Response

a.

Half Duplex

b.

Parallel

c.

Serial

d.

Full Duplex

Question 490

Question

MCQ▾

Which of the following do not belong to queues for process?

Choices

Choice (4)Response

a.

Device Queue

b.

Job Queue

c.

PCB Queue

d.

Ready Queue

Question 491

Question

MCQ▾

In DBMS, ________ key provides sole tuple-level addressing mechanism within the relational model.

Choices

Choice (4)Response

a.

Candidate

b.

Unique

c.

Primary

d.

Foreign

Question 492

Appeared in Year: 2014

Question

MCQ▾

In the below letter series, some of the letters are missing which are given in that order as one of the options below it. Choose the correct option. (SET-B)

a_bbc_aab_cca_bbcc

Choices

Choice (4)Response

a.

bacb

b.

acba

c.

abba

d.

baaa

Question 493

Appeared in Year: 2014

Question

MCQ▾

Which of the following statements best describes IP spoofing? (SET-B)

Choices

Choice (4)Response

a.

Gaining unauthorized access to someone՚s computer by creating TCP/IP packets using somebody else՚s IP address.

b.

Breaking up a single IP into multiple packets.

c.

Introducing bug in the operating system so that it prevents users to access any resource.

d.

None of the above