| Post Name | NETWORK ADMINISTRATOR |
|---|---|
| Department | KERALA ADMINISTRATIVE TRIBUNAL |
| Question Paper Code | 098/2022 |
| Category Code | 137/2020 |
| Date of Test | 19 October 2022 |
| Medium of Question | ENGLISH |
| Exam Type | OMR Examination |
| Total Questions | 100 |
1
Which of the following statements are TRUE?
(i) In vectored interrupt, the branch address is obtained from a register in the
processor
(ii) Daisy chaining is used to assign priorities in attending the interrupt
(iii) During DMA, both the CPU and DMA controller can be the bus master at the
same time
(iv) Interrupt latency is the period between occurrence of an interrupt and start of
execution of the interrupt Service Routine
Answer
B. (ii) and (iv)
2
Which of the following statement is/are FALSE?
(i) Memory address space gives the PCI its plug and plays capability
(ii) PCI bus supports memory, I/O and configuration address space
(iii) PCI bridge provides a separate physical connection to the memory
Answer
A. (i) only
3
Suppose a computer using direct mapped cache has 210 bytes of byte-addressable main
memory and a cache of 32 blocks, where each cache block contains 16 bytes. How many
blocks of main memory are there?
Answer
C. 26
4
Consider the following statements comparing static RAM with dynamic RAM:
(i) DRAM is costlier than SRAM
(ii) SRAM has shorter read and write cycle
(iii) SRAM use flip flop to store information whereas DRAM use capacitor to store
information
(iv) DRAM contains less memory cells as compared to SRAM per unit area
Which of the above statements are false?
Answer
D. (i) and (iv)
A 3
5
A byte addressable computer has a memory capacity of 212 bytes and can perform 1024
operations. An instruction involving 2 operands and one operator needs a maximum of
Answer
D. 34
6
A memory system has total of 16 memory chips, each with 12 address lines and 8 data lines.
The total size of the memory system is
Answer
A. 64 KB
7
The multiplexing of address and data buses is used in microprocessor
Answer
B. To reduce the number of pins on IC
8
Ready pin of a microprocessor is used
Answer
C. To introduce wait states
9
The type of microcontroller which does not have program memory on the chip is known as
Answer
A. External memory microcontroller
10
The protocol standards that have the primary function of transferring data between the host
system and mass storage devices
Answer
D. SATA
11
Which of the following is true?
Answer
Question Cancelled
12
Which of the following instructions should be allowed in kernel and mode and not in user
mode?
(i) Disable all interrupts
(ii) Read the time-of-day clock
(iii) Set the time-of-day clock
(iv) Change the memory map
Answer
A. (i), (iii), (iv)
13
Four jobs to be executed on a single processor system arrive at time 0 in the order
P1 , P2 , P3 and P4 and their CPU burst time requirements are 5, 2, 7 and 1 ms respectively. The
completion time of P1 under round robin scheduling with time quantum of 1 ms.
Answer
B. 12
14
The command that is used to remove executable permission from the user and assign read
permission to the group and others for the file named ‘file 1’
Answer
A. chmod u-x, go + r file1
15
Which of the following is the function of curl command?
Answer
C. To transfer data using URL syntax
16
If the number of bits in the virtual address of a program is 8 and the page size is 16 bytes,
the number of pages in virtual address space is
Answer
B. 16
17
Virtualization layer that enables multiple operating systems to share a single hardware host
Answer
D. VMM
A 5 098/2022
18
At initialization, a java application needs to loads 25 libraries. Each library takes one disc
access to load. The disc seek time to a random location is specified as 20 ms. The disc rotates
at a rate of 3000 rpm. How long will it take to load all 25 libraries if they are loaded from
random locations on the disc? (The time it takes to transmit data from a disc block once the
head is positioned at the beginning of the block can be ignored.)
Answer
B. 0.75 sec
19
Match the following
(i) Redirect the output of one command into a. >
another command
(ii) Redirect output of a command into a new
file. If the file already exists, over-write it b. |
(iii) Redirect the output of a command onto the c. <
end of an existing file
(iv) Redirect a file as input to a program d. >>
Answer
B. , (ii):c, (iii): d, (iv) :a
20
For the page reference string 2, 3, 0, 1, 5, 4, 0, 1, 2, 5, 4, 3, 4, 2, 3, 5 compute the number of
page faults following a LRU page replacement policy with 3 memory frames (initially empty)
Answer
C. 14
21
Let R
Answer
D. ,e,f,) be two relations in which d is the foreign key of S that refers to the
primary key of R. Consider the following four operations on R and S
(i) Insert into R
(ii) Insert into S
(iii) Delete from R
(iv) Delete from S
Which of the following statements is true about the referential integrity constraint
above?
22
Which of the following is false?
Answer
C. Ensuring atomicity and consistency is the responsibility of recovery management
component
23
SQL Server allows for Transact-SQL stored procedures, triggers, and batches to refer to
tables that don’t exist at compile time. This ability is called
Answer
A. Deferred Name Resolution
24
Which-one of the following statements about normal forms is FALSE?
Answer
B. Loss less, dependency – preserving decomposition into BCNF is always possible
25
Which of the following is false?
Answer
B. B + tree is having the same performance as that of indexed sequential file
26
Which of the following statements are True
(i) GIS deals with spatial data spatial data
(ii) Barometric pressure is a geographic field
(iii) Ramanujan space is related to GIS
(iv) Tessellations partition the study space into cells and assign a value to each cell
Answer
D. (i), (ii) and (iv)
27
CAP theorem in NoSQL stands for
Answer
A. Consistency, Availability, Partition tolerance
28
On which of the following is not related semantic web?
Answer
D. None of above
29
Which of the following statements are False about big data?
(i) The main components of Big data are map reduce, HDFS and YARN
(ii) Big data processing utilize outside intelligence while taking decision
(iii) Apache Pytarch is a Big Data Technology
(iv) Hadoop is named after the sound Cutting’s laptop made during Hadoop
development
Answer
C. (iii) and (iv)
30
A bank offers its account holders 9% interest if their balance is above Rs.20,000, else 5%.
To achieve this, each of the following SQL statements is executed as separate transactions
t1 and t2
t1: update account set balance = balance *1.5 where balance <=20,000
t2: update account set balance set balance = balance * 1.9 where balance > 20,000 Then
t1 and t2
Answer
Question Cancelled
31
Which is not true?
Answer
C. hgroup tag is for hiding something
32
Which is true?
Answer
A. XHTML comes with a much stricter error handling than HTML.
33
URL is a subset of
Answer
A. Uniform Resource Indicator
34
Which is true?
Answer
D. All are true
35
Check whether the following terms are related to Web scraping.
1. Web crawler
2. Spider
3. Bots
4. Degauss
Which of the following is true?
Answer
D. 1,2 and 3 are related
36
Following are a few statements are about XML.
1. XSLT is a popular XML technology
2. SVG has no relation with XML
3. SMIL can be used in XML for multimedia purpose
A. SOAP uses XML
Which is true?
Answer
C. 1,3 and 4 are true
37
Following are statements are about CSS
1. There are physical tags and logical tags
2. Icon is an attribute of font
3. DispCss is a media type used
4. | CSS box model is related to layout and design of elements
Which is true?
Answer
C. 1,2 and 4 are true
38
—————— contains all types of PHP code snippets and libraries.
Answer
A. PEAR
39
Consider following statements.
1. LAMP stands for Linux, Apache, MySQL, and PHP.
2. | WAMP stack uses Microsoft Windows.
3. phpMyAdmin is a LAMP application for administering MySQL servers
4. Wordpress cannot be installed with LAMP
Which is true?
Answer
D. 1,2 and 3 are true
40
Consider the following matches.
1. Microsoft — IIS Server
2. Webserver — Apache
3. Magento — Debugging tool
4. PHP — Server side scripting
Which is true?
Answer
A. 1,2 and 4 are true
41
Switching method is best suited to analog transmission of voice signals
Answer
B. Circuit
42
Space division switching is applicable for
Answer
C. Applicable for both
43
Consider the following statements about Datagram networks. Which is not true?
Answer
C. Resources are allocated on demand on a Last-Come-First-Serve (LCFS) basis
44
Which of the following is not true?
Answer
D. DataRate corresponding to SONET STS-3 is 622.08 Mbps.
45
Which is NOT true?
Answer
C. DM) uses spread spectrum communication
46
—————— is a loss of power of a satellite downLink signal due to earth’s atmosphere.
Answer
B. Path loss
47
Which is not a valid statement?
Answer
D. Radio waves of high frequencies are never absorbed by rain or similar obstacles
48
The common characteristic properties of the laser radiation are given as
1. | Monochromaticity
2. Directionality
3. Coherence
4. High brightness
Choose the correct from the below.
Answer
A. 1, 2, 3 and 4 are true
49
Moon bounce matches with
Answer
D. All of the above
A 11 098/2022
50
Which is not true about statistical Time Division Multiplexing?
Answer
A. It is less efficient than a synchronous TDM
51
The IEEE —————— standard uses Distributed Queue Dual Bus network form.
Answer
A. 802.6
52
In OSI model, the —————— layer is responsible for the flow control between the
originating node and the destination node of a message.
Answer
D. Transport
53
The —————— hexadecimal digits of an ethernet address is an Organizationally Unique
Identifier.
Answer
C. First 6
54
A network switch has 15 computers connected to it. If no VLANS are present, how many
broadcast and collision domains are there, respectively?
Answer
B. 1,15
55
What is the broadcast address on the LAN with the router interface 192.168.16.40/29?
Answer
B. 192.168.16.47
56
The type of cable required for a router-to-switch connection is —————— and for a
host-to-switch connection is
Answer
D. Straight-through, straight - through
098/2022 12 A
57
—————— is a technique used by distance vector protocols to prevent routing loops.
Answer
C. Split horizon
58
If a 10 Mbps LAN needs a minimum frame size of 56 bytes (for collision detection), the
minimum frame size required for a 100 Mbps LAN is —————— bytes.
Answer
D. 560
59
The bandwidth of a communication link is 256 Mbps. If the byte sequence number is of size
32 bits, what is the wrap-around time for sequence numbers?
Answer
A. 128s
60
Which OFDMA-based IEEE wireless standard is also known as Wi-Fi 6?
Answer
B. 802.11ax
61
The ICMP message generated when the TTL field of a datagram becomes 0 (thereby causing
the datagram to be discarded) is
Answer
D. Time Exceeded
62
In DNS, —————— records are used to point a domain or subdomain to another hostname.
Answer
C. CNAME
63
—————— is an example of a path vector routing protocol.
Answer
A. BGP
64
After a manual MAC address change, —————— ARP may be used to inform other nodes
about the new MAC address and the IP to MAC Mapping.
Answer
A. Gratuitous
65
The —————— is the result of a lack of synchronization between the sender and receiver
regarding capacity of the flow of data or the size of the packet.
Answer
C. Silly Window Syndrome
66
Which among the following algorithms is used for TCP roundtrip time and time-out
estimation?
Answer
C. Jacobson’s algorithm
67
Which among the following fields is not a pad of UDP pseudo header in IPv4?
Answer
B. Destination Port
68
If the hold timer between two BGP routers is set to 120 seconds, then KEEPALIVE messages
will be exchanged every ––––––––––––– seconds.
Answer
C. 40
69
The MIME type audio/mpeg denotes a file with extension
Answer
B. .mp3
70
The IP multicast address range —————— denotes a local sub network.
Answer
A. 224.0.0.0 – 224.0.0.255
71
Which among the following is the correct sequence of DHCP messages?
Answer
A. DHCPDISCOVER, DHCPOFFER, DHCPREQUEST
72
Two switches are connected together with two crossover cables for redundancy. If Spanning
Tree Protocol is disabled, then
Answer
D. There will be broadcast storms in the network
73
In a Cisco router, which among the following access lists will prevent hosts in the range
172.16, 160.0 to 172.16. 191.0?
Answer
A. access-list 10 deny 172.16.160.0 0.0.31.255
74
Which among the following wildcard masks ensure that the exact address will have to be
matched on all 4 octets of the address?
Answer
A. 0.0.0.0
75
In order to avoid rogue DHCP servers and remove malformed DHCP traffic, ——————
feature can be configured on switches.
Answer
C. DHCP snooping
76
When a router sets the metric for an unreachable link to infinity in the routing table, it is an
example of
Answer
D. Route Poisoning
77
The default port for SSH client connections is
Answer
A. 22
78
What part of DNS is flushed by the command ipconfig /flushdns?
Answer
C. Resolver cache
79
A router has three different routes to the same network in its routing table – static, RIP and
EIGRP. The default route to the network would be
Answer
C. Static
80
When a DNS query message is created, a 1-bit —————— flag is used to indicate the action
to be taken in case the DNS server does not have the required record.
Answer
D. Recursion-desired
81
Assurance that the sender of information is provided with proof of delivery and the recipient
is provided with proof of the sender’s identity, so neither can later deny having processed the
information is called
Answer
C. Non repudiation
82
Two forms of risk assessment are:
Answer
C. Qualitative and quantitative
83
An audit log is an example of what type of control?
Answer
D. Detection
84
What is the default port id of https port
Answer
C. 443
85
A packet filter firewall operates in the
Answer
B. Network or transport layer
86
Which of the following attacks will be protected by a firewall?
Answer
A. Denial of service
87
Which of the following is telnet port id
Answer
C. 23
88
Which of the statements are not true to classify VPN systems?
Answer
B. Securing the network from bots and malwares
89
Site-to-site VPNs are also known as
Answer
D. Router-to-router VPNs
90
Remote access VPNs rely on —————— and —————— for secure connection
Answer
A. IPSec, SSL
91
How many layers are there is the TCP/IP protocol architecture
Answer
C. 4
92
—————— is used between a network management console and network devices (routers,
bridges, intelligent hubs) to collect and exchange network management information.
Answer
B. SNMP
93
150.51.30.40 is a class —————— IP address
Answer
B. B
94
The following is not a remote administration tool
Answer
D. csh
95
The Active Directory domain database file —————— contains all domain data including
password hashes for users, computers, trusts, etc.
Answer
A. NTDS.dit
96
—————— is a challenge-response authenticate protocol used to authenticate a client to
resource on an Active Directory domain?
Answer
B. NTLM
97
In an Active Directory Environment —————— is used for centralized management of
computers in the domain
Answer
D. Group policy
98
Which of the following is not a major component of an active directory?
Answer
D. Schema
99
What is the file system for Active Directory?
Answer
C. NTFS
100
Which of the following is not a third party tool to audit, manage, monitor, secure, and report
on Active Directory?
Answer
D. Monitor
————————
098/2022 18 A
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