Sample Papers for DMRC for System Analyst

Could you please give here sample paper of Delhi Metro Rail Corporation (DMRC) Exam for System Analyst ?

As you want I am here giving you sample paper of Delhi Metro Rail Corporation (DMRC) Exam for System Analyst.

Sample Paper :
When two numbers are added in excess-3 code and the sum is less than 9, then in order to get the correct answer it is necessary to
(a) subtract 0011 from the sum
(b)add 0011 to the sum
(C) subtract 0110 from the sum
(d)add OllOto the sum

A graph with ‘en” vertices and n-I edges that Is not a tree, is
(a) Connected
(b) Disconnected
(C) Euler
(d) A circuit

If a graph requires k different colours for its proper colouring, then the chromatic number of the graph is
(a)1
(b)k
(c) k-I
(d) k12

Are adblt can be read
(a) and written by CPU
(b) and written by peripheral
(c) by pheripheral and written by CPU
(d) by CPU and written by the peripheral

The term “aging” refers to
(a ) booting up the priority of a process in multi-level of queue without feedback.
(b) gradually increasing the priority of jobs that wait in the system for a long time to remedy infinite blocking.
(C) keeping track of the following a page has been in memory for the purpose of LRU replacement
(d) letting job reside in memory for a certain amount of time so that the number of pages required can be estimated accurately.

Consider a set of n tasks with known runtirnes r1, r2 ……. r to be run on a unlprocessor machine. Which of the following processor scheduling algorithms will result in the maximum throughput?
a) Round Robin
b) Shortest job first
c) Highest response ratio next
d) first cum first served

The principal of locality of reference justifies the use of
(a) virtual memory
(b) interrupts
(c) main memory
(d) cache memory

The five Items: A, B, C, D, and E are pushed in a stack, one after the other starting from A. The stack is popped four times and each element is Inserted in a queue. Then two elements are deleted from the queue and pushed back on the stack. Now one item is popped from the stack. The popped item is
(a)A
(b)B
(c)C
(d)D

Round Robin scheduling is essentially the pre-emptive version of
a) FIFO
b) Shortest Job First
c) Shortest remaining time
d) Longest remaining time

Assume that each character code consists of 8 bits. The number of characters that can be transmitted per second through an synchronous serial line at 2400 baud rate, and with two stop bits is
(a)109
(b) 216
(c)218
(d)219

If the bandwidth of a signal is 5 kHz and the lowest frequency is 52 kHz, what is the highest frequency
(a) 5 kHz
(b) 10kHz
(C) 47 kHz
(d) 57 kHz

An Ethernet hub
(a) functions as a repeater
(b) connects to a digital PBX
(C) connects to a token-ring network
(d) functions as a gateway

Phase transition for each bit are used in
(a) Amplitude modulation
(b) Carrier modulation
(c) Manchester encoding
(d) NRZ encoding

Which of the foIlowng is printed as a result of the call demo (1234)?
a) 1441
b) 3443
C) 12344321
d) 43211234

Bit stuffing refers to
(a) inserting a ‘O’in user stream to differentiate it with a flag
(b) inserting a ‘0’ in flag stream tc avoid ambiguity
(C) appending a nibble to the flag sequence
(d ) appending a nibble to the use data stream

What is the name of the technique in which the operating system of a computer executes several programs concurrently by switching back and forth between them?
(a) Partitioning
(b) Multi tasking
(C) Windowing
(d) Paging

If there are five routers and six networks in an ntranet using link state routing, how many routing tables are there?
(a)1
(b)5
(c)6
(d)11

Virtual memory is
a) Part of Main Memory only used for swapping
b) A technique to allow a program, of size more than the size of the main memory, town
C) Part of secondary storage used in program execution
d) None of these

The level of aggregation of information required for operational control is
(a) Detailed
(b) Aggregate
(C) Qualitative
(d) None of the above

in decimal system is equivalent to in octal system
a) 0.60
b) 0.52
c)0.54
d) 0.50

In an SR latch made by cross coupling two NAND gates, if both S and R inputs are set to 0, then it will result in
a)Q=O, QO= I
b)Q=1,Q0=0
0=1, QO = 1
Indeterminate states

In comparison with static RAM memory, the dynamic RAM memory has
a) lower bit density and higher power consumption
b) higher bit density and higher power consumption
c) lower bit density and lower power consumption
d) higher bit density and lower power consumption.

Disk requests are received by a disk drive for cylinder 5, 25, 18, 3, 39, 8 and 35 in that order A seek takes 5 msec per cylinder moved. How much seek time is needed to serve these requests for a Shortest Seek First (SSF) algorithm? Assume that the arm is at cylinder ?,O when the last of these requests is made with none of the requests yet served
a) 125 msec
b) 295 msec
c) 575 msec
d) 750 msec

Consider a system having ‘m’ resource.s of the same type. The resources are shared by 3 processes A,B,C, which have peak time demands of 3,4,6 respectively. The minimum value of ‘m’ that ensures that deadlock will never occur is
(a)11
(b) 12
(c) 13
(d)14

A task in a blocked state
a) is executable
b) is running
C) must still be placed in the run queues
d) Is waiting for some temporarily unavailable resources.

Semaphores
a) synchronize critical resources to prevent deadlock
b) synchronize critical resources to prevent contention
c) are used to do I/O
d) are used for memory management.

Which commands are used to control access over objects in relational database?
a) CASCADE & MVD
b) GRANT & REVOKE
c) QUE & QUIST
d) None of these

Which of the following is aggregate function in SQL?
a) Avg
b) Select
c) Ordered by
d) distinct

A view of a database that appears to an application program Is known as
a) Schema
b) Subschema
C) Virtual table
d) None of these

__________________
Answered By StudyChaCha Member