WAN Network Solved MCQs
WAN (Wide Area Network) Solved MCQs
Q. The ________ address, also known as the link address, is the address of a node as defined by its LAN or WAN.
A) logical
B) port
C) physical✔
D) none of the above
Q. The _______ model shows how the network functions of a computer ought to be organized.
A) ANSI
B) CCITT
C) ISO
D) OSI✔
Q. The _______ layer ensures interoperability between communicating devices through transformation of data into a mutually agreed upon format.
A) network
B) presentation✔
C) transport
D) data link
Q. What is the example of WAN Network
A) Blue Rands
B) OSI
D) Net host
Q. CISCO Stands For_____
A) Commercial & Industrial Science Corporation
B) Commercial & Industrial Secure Corporation
C) Commercial & Industrial Scientific Corporation
D) Commercial & Industrial Security Corporation✔
WAN Layers
Q. The _______ layer links the network support layers and the user support layers.
A) session
B) transport✔
C) data link
D) network
Q. ICMPv6 includes _______.
A) IGMP
B) ARP
C) RARP
D) a and b✔
Q. The ____ address uniquely defines a host on the Internet.
A) IP✔
B) port
C) specific
D) physical
Q. The _______ layer coordinates the functions required to transmit a bit stream over a physical medium.
A) data link
B) transport
C) network
D) physical✔
Q. The ______ layer is responsible for the source-to-destination delivery of a packet across multiple network links.
A) network✔
B) physical
C) data link
D) transport
Q. Mail services are available to network users through the _______ layer.
A) Transport
B) Physical
C) Data link
D) Application✔
Q. The ____ created a model called the Open Systems Interconnection, which allows diverse systems to communicate.
A) IEEE
B) ISO✔
C) OSI
D) none of the above
Q. The _______ layer changes bits into electromagnetic signals.
A) Physical✔
B) Transport
C) Data link
D) None of the above
Q. IPv6 has _______ bit addresses.
A) 128✔
B) 32
C) 64
D) variable
Q. The_____ address identifies a process on a host.
A) specific
B) port✔
C) IP
D) physical
Q. The_________ layer is responsible for the delivery of a message from one process to another.
A) transport✔
B) network
C) physical
D) none of the above
WAN Data And Signals
Q. If the maximum amplitude of a sine wave is 2 V, the minimum amplitude is ________ V.
A) 2
B) 1
C) -2✔
D) between -2 and 2
Q. _________ can impair a signal.
A) Noise
B) Attenuation
C) Distortion
D) All of the above✔
Q. ________is the rate of change with respect to time.
A) Time
B) Frequency✔
C) Amplitude
D) Voltage
Q. A signal is measured at two different points. The power is P1 at the first point and P2 at the second point. The dB is 0. This means ________.
A) P2 equals P1✔
B) P2 is zero
C) P2 is much larger than P1
D) P2 is much smaller than P1
Q. Baseband transmission of a digital signal is possible only if we have a ____ channel. A) bandpass
B) low-pass✔
C) high rate
D) low rate
Q. ________ is a type of transmission impairment in which the signal loses strength due to the resistance of the transmission medium.
A) Distortion
B) Attenuation✔
C) Noise
D) Decibel
Q. A sine wave in the ______ domain can be represented by one single spike in the _____ domain.
A) time; phase
B) frequency; time
C) time; frequency✔
D) phase; time
Q. 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) 47 KHz
C) 57 KHz✔
D) 10 KHz
Q. In a time-domain plot, the horizontal axis is a measure of ________.
A) phase
B) signal amplitude
C) frequency
D) time✔
Q. _______ data are continuous and take continuous values.
A) digital
B) analog✔
C) (a) or (b)
D) none of the above
Q. Frequency and period are ______.
A) proportional to each other
B) inverse of each other✔
C) the same
D) none of the above
WAN Digital Transmission
Q. Which of the following encoding methods does not provide for synchronization? A) RZ
B) NRZ-L✔
C) NRZ-I
D) Manchester
Q. If the frequency spectrum of a signal has a bandwidth of 500 Hz with the highest frequency at 600 Hz, what should be the sampling rate, according to the Nyquist theorem?
A) 200 samples/s
B) 500 samples/s
C) 1000 samples/s
D) 1200 samples/s✔
Q. In asynchronous transmission, the gap time between bytes is _______.
A) variable✔
B) fixed
C) zero
D) a function of the data rate
Q. ______ substitutes eight consecutive zeros with 000VB0VB.
A) B4B8
B) B8ZS✔
C) HDB3
D) none of the above
Q. The most common technique to change an analog signal to digital data is called __________.
A) sampling
B) PAL
C) PCM✔
D) none of the above
Q. The minimum bandwidth of Manchester and differential Manchester is ____ that of NRZ.
A) the same as
B) twice✔
C) thrice
D) none of the above
Q. The signal rate is sometimes called the ____ rate.
A) bit
B) baud✔
C) signal
D) none of the above
Q. Unipolar, bipolar, and polar encoding are types of _______ encoding.
A) line✔
B) block
C) NRZ
D) Manchester
Q. ________ is normally referred to as mB/nB coding; it replaces each m-bit group with an n-bit group.
A) Line coding
B) Block coding✔
C) Scrambling
D) None of the above
Q. In ______ schemes, the voltages are on the both sides of the time axis. For example, the voltage level for 0 can be positive and the voltage level for 1 can be negative.
A) unipolar
B) bipolar
C) polar✔
D) all of the above
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