Questions

Q:

The network layer concerns with

A) Packets B) Frames
C) Bytes D) All of the above
 
Answer & Explanation Answer: A) Packets

Explanation:

The network layer concerns with the packets. It brings the packets from the source to the destination.

Report Error

View Answer Report Error Discuss

9 3583
Q:

Prokaryotic cells lack

A) Membrane bound by organelles B) Nucleolus
C) Nuclear membrane D) All the above
 
Answer & Explanation Answer: D) All the above

Explanation:

Prokaryotic cells lack a nucleus and do not have an extensive system of interior membranes. They are encased in a cell wall and many contain external structures such as a capsule, flagellum, or pili. Prokaryotes – have a relatively uniform interior that is not subdivided by internal membranes.

Report Error

View Answer Report Error Discuss

Filed Under: Biology
Exam Prep: AIEEE , Bank Exams
Job Role: Analyst , Bank Clerk

6 3583
Q:

A bucket of water is hung from a spring balance. A piece of iron is suspended in the water without touching the sides or touching the bottom of the the bucket. The reading of the spring balance

A) will increase B) will decrease
C) does not change D) varies with the increase of depth of the immersion of the iron piece
 
Answer & Explanation Answer: A) will increase

Explanation:

When the piece of iron is lowered into the water, the water level in the bucket increases. And so the pressure at the bottom of bucket also increases. Thus the total thrust at bottom also increases. Therefore the spring balance reading increases. Thus (a) is correct.

Report Error

View Answer Report Error Discuss

Filed Under: Physics

1 3583
Q:

Describe the Buddy system of memory allocation.

Answer

Free memory is maintained in linked lists, each of equal sized blocks. Any such block is of size 2^k. When some memory is required by a process, the block size of next higher order is chosen, and broken into two. Note that the two such pieces differ in address only in their kth bit. Such pieces are called buddies. When any used block is freed, the OS checks to see if its buddy is also free. If so, it is rejoined, and put into the original free-block linked-list.

Report Error

View answer Workspace Report Error Discuss

1 3582
Q:

Operating system functions may include

A) multiprogramming B) input/output control
C) virtual storage D) All the above
 
Answer & Explanation Answer: D) All the above

Explanation:

An operating system has three main functions:

(1) manage the computer's resources, such as the central processing unit, memory, disk drives, and printers,

(2) establish a user interface, and

(3) execute and provide services for applications software.

Report Error

View Answer Report Error Discuss

5 3581
Q:

A series of fast moving still pictures can be made to appear as a moving picture because the eye 

A) can focus very rapidly as pictures change B) is quicker than the brain
C) can see 2 images separated only if the interval betwen seeing them is more than one-tenth of a second D) can shut out some of the light
 
Answer & Explanation Answer: C) can see 2 images separated only if the interval betwen seeing them is more than one-tenth of a second

Explanation:

The eye can see images separately only if they are exhibited at an interval of more than 1/10 of a second. In the case of a movie, the still pictures come one after the other at less than this minimum interval. So we do not see them separately but only as a continuous moving picture.

Report Error

View Answer Report Error Discuss

Filed Under: Physics

2 3580
Q:

Human Heart is made up of

A) nervous tissue B) cardiac muscle
C) nonstriated muscle D) connective tissue
 
Answer & Explanation Answer: B) cardiac muscle

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Biology

8 3580
Q:

Tissue that connects muscle to bone

A) Tendons B) Joint capsule
C) Body fiber D) Ligament
 
Answer & Explanation Answer: A) Tendons

Explanation:

A tendon is a fibrous connective tissue which is Tough, fibrous, cord-like tissue that connects muscle to bone or another structure, such as an eyeball. Tendons help the bone or structure to move.

Report Error

View Answer Report Error Discuss

Filed Under: Biology
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Analyst , Bank Clerk , Bank PO

3 3580