ISRO CSE 2015
Q51.
In a class B subnet, we know the IP address of one host and the mask as given below:IP address: 125.134.112.66Mask: 255.255.224.0What is the first address(Network address)?Q52.
How many bits internet address is assigned to each host on a TCP/IP internet which is used in all communication with the host?Q53.
The queue data structure is to be realized by using stack. The number of stacks needed would beQ55.
If D_1,D_2,...D_n are domains in a relational model, then the relation is a table, which is a subset ofQ56.
Let R=(A,B,C,D,E,F) be a relation scheme with the following dependencies C \rightarrow F, E \rightarrow A, EC \rightarrow D, A \rightarrow B. Which of the following is a key of R?Q58.
Six files F1, F2, F3, F4, F5 and F6 have 100, 200, 50, 80, 120, 150 records respectively. In what order should they be stored so as to optimize act. Assume each file is accessed with the same frequencyQ59.
A hard disk system has the following parameters :Number of tracks =500Number of sectors/track =100Number of bytes /sector =500Time taken by the head to move from one track to adjacent track =1 msRotation speed =600 rpm.What is the average time taken for transferring 250 bytes from the disk ?Q60.
A machine needs a minimum of 100 sec to sort 1000 names by quick sort. The minimum time needed to sort 100 names will be approximately