Menu Navigation

  • Cell: +92(308)611-2254

Study Mid Term Quiz-1 CS604 Operating Systems Online

An applet is _______________ document application program.
An active
A passive
A static
A dynamic
A user wants to copy a file to another location; the request line contains the _______________ method.
PUT
PATCH
COPY
POST
Which type of Web document is created at the server site only when requested by a client?
Active Data Communication- by Muhammad Ishfaq Page No.69
Static
Dynamic
All the above
BNC connectors are used by _______________ cables.
Fiber-optic
UTP
STP
Coaxial
_______________ is a dynamic mapping protocol in which a physical address is found for a given IP address.
RARP
ICMP
ARP
None of the above
As the bit rate of an FSK signal increases, the bandwidth _______________.
Remains the same
Decreases
Increases
Doubles
A modulated signal is formed by _______________.
Changing the carrier wave by the modulating signal
Quantization of the source data
Changing the modulating signal by the carrier wave
Sampling at the Nyquist frequency
How many crosspoints are needed in a single-stage switch with 40 inputs and 50 outputs?
2000
90
50
40
Which of the following is not a client program in WWW?
FTP
HTTP
HTML
TELNET
A _______________ is a large number used only once that helps distinguish a fresh authentication request from a repeated one.
Ticket
Realm
Nonce
Public key
In a crossbar with 1000 crosspoints, approximately how many are in use at any time?
100
250
500
1000
_______________ has units of bits/second.
Throughput
Propagation speed
Propagation time
(b) and (c)
Smoke signals are an example of communication through _______________.
A guided medium
A refractive medium
An unguided medium
A small or large medium
The IP header size _______________.
Depends on the MTU
Is 20 to 60 bytes long
Is 20 bytes long
Is 60 bytes long
As frequency increases, the period _______________.
Decreases
Increases
Remains the same
Doubles
_______________, an (a)_______________ protocol, establishes and terminates a network layer connection for IP packets.
CHAP; NCP
IPCP; NCP
NCP; IPCP
SLIP; PPP
_______________ is a protocol to control and manage interfaces in Frame Relay networks.
FRAD
DLCI
LMI
VOFR
In the public-key method of cryptography, only the receiver has possession of the _______________.
Public key
Both keys
Private key
None of the above
In _______________, each packet of a message need not follow the same path from sender to receiver.
The virtual approach to packet switching
The datagram approach to packet switching Data Communication- by Muhammad Ishfaq Page No.44
Message switching
None of the above
A one-to-all communication between a source and all hosts on a network is classified as a _______________ communication.
Unicast
Multicast
Broadcast
(a) and (b)
The Internet model consists of _______________ layers.
Three
Five
Seven
Eight
Which multiplexing technique transmits analog signals?
FDM
TDM
WDM
(a) and (c)
A _______________ is a Differentiated Services traffic conditioner.
Meter
Marker
Shaper
A client machine usually needs _______________ to send email.
Only POP
Both SMTP and POP
Only SMTP
None of the above
Category 1 UTP cable is most often used in _______________ networks.
Infrared
Telephone
Fast Ethernet
Traditional Ethernet
D-AMPS uses _______________ for multiplexing.
CDMA
TDMA
FDMA
(b) and (c)
In TDM, the transmission rate of the multiplexed path is usually _______________ the sum of the transmission rates of the signal sources.
1 less than
Greater than
Less than
Equal to
A Bluetooth network can have _______________ master(s).
One
Two
Three
Eight
In which type of switching do all the packets of a message follow the same channels of a path?
Virtual circuit packet switching
Message switching
Datagram packet switching
None of the above
In _______________ routing, the destination address is a network address in the routing table.
Network-specific
Host-specific
Next-hop
Default
A user needs to retrieve a document from the server; the request line contains the _______________ method.
GET
HEAD
POST
PUT
Which error detection method consists of a parity bit for each data unit as well as an entire data unit of parity bits?
Simple parity check
Checksum
Two-dimensional parity check
CRC
_______________ is a multicast routing protocol using source-based trees.
DVRMP
MOSPF
CBT
(a) and (b)
Wavelength is _______________ proportional to propagation speed and _______________ proportional to period.
Directly; directly
Inversely; directly
Directly; inversely
Inversely; inversely
Which of the following is a time-division switch?
TSI
TDM bus
Crosspoint
(a) and (b)
The _______________ is the fraction of the cells delivered in error.
CLR
CER
CTD
CDV
The RTCP _______________ report informs the sender and other receivers about the quality of service.
Sender
QoS
Receiver
Passive
In the symmetric-key method of cryptography, which key is publicly known?
Encryption key only
Decryption key only Data Communication- by Muhammad Ishfaq Page No.74
Both
None of the above
Which of the following is a four-wire Gigabit Ethernet implementation?
1000Base-SX
1000Base-LX
1000Base-T
1000Base-CX
An LEO satellite has _______________ orbit.
An equatorial
A polar
An inclined
All the above
When a multicast router is not directly connected to another multicast router, a _______________ can be formed to connect the two.
Logical core
Spanning tree
Physical tunnel
Logical tunnel
Trunks are transmission media such as _______________ that handle the telephone communication between offices.
Twisted-pair cable
Fiber-optic cable
Satellite links
(b) and (c)
HDSL encodes data using _______________.
6B/8T
4B/5B
2B1Q
1B2Q
Which of the following is a retrieval method?
HTTP
FTP
TELNET
All the above
IPSec requires a logical connection between two hosts using a signaling protocol called _______________.
PGP
TLS
AH
SA
The HDLC _______________ field defines the beginning and end of a frame.
Address
Control
Flag
FCS
A bridge forwards or filters a frame by comparing the information in its address table to the frame's _______________.
Source node's physical address
Layer 2 destination address
Layer 2 source address
Layer 3 destination address
If the maximum amplitude of a sine wave is 2 V, the minimum amplitude is _______________ V.
2
1
-2
Between -2 and 2
In the PPP frame, the _______________ field has a value of 11111111 to indicate the broadcast address of HDLC.
Protocol
Address
Control
FCS
A router reads the _______________ address on a packet to determine the next hop.
MAC
Source
IP
ARP


Lecture-wise Quiz Tests