Question 1

In down-conversion multiplication with cosine wave is followed by

Accepted Answer

A) low pass filter 
B) high pass filter 
C) bandpass filter 
D) bandstop filter 
A) low pass filter 
B) high pass filter 
C) bandpass filter 
D) bandstop filter A

Question 2

Properties of impulse function are

Accepted Answer

A) symmetry 
B) time scaling 
C) shifting 
D) all of the mentioned 
A) symmetry 
B) time scaling 
C) shifting 
D) all of the mentioned D

Question 3

Which of the following is an example of network layer vulnerability?

Accepted Answer

A) mac address spoofing 
B) physical theft of data 
C) route spoofing 
D) weak or non-existent authentication 
A) mac address spoofing 
B) physical theft of data 
C) route spoofing 
D) weak or non-existent authentication C

Question 4

A base-band signal can be up-converted using

Accepted Answer

A) sine wave 
B) cosine wave 
C) filtering 
D) none of the mentioned 
A) sine wave 
B) cosine wave 
C) filtering 
D) none of the mentioned

Question 5

A band-pass signal has

Accepted Answer

A) dc component 
B) no dc component 
C) no side lobes 
D) cannot be determined 
A) dc component 
B) no dc component 
C) no side lobes 
D) cannot be determined

Question 6

Which of the following is an example of physical layer vulnerability?

Accepted Answer

A) mac address spoofing 
B) physical theft of data 
C) route spoofing 
D) weak or non-existent authentication 
A) mac address spoofing 
B) physical theft of data 
C) route spoofing 
D) weak or non-existent authentication

Question 7

Properties of Fourier transform are

Accepted Answer

A) duality property 
B) time shifting property 
C) modulation property 
D) all of the mentioned 
A) duality property 
B) time shifting property 
C) modulation property 
D) all of the mentioned

Question 8

Which of the following is an example of data-link layer vulnerability?

Accepted Answer

A) physical theft of data 
B) vlan circumvention 
C) route spoofing 
D) weak or non-existent authentication 
A) physical theft of data 
B) vlan circumvention 
C) route spoofing 
D) weak or non-existent authentication

Question 9

Fourier transform of a signal gives the

Accepted Answer

A) frequency content 
B) bandwidth 
C) frequency content & bandwidth 
D) none of the mentioned 
A) frequency content 
B) bandwidth 
C) frequency content & bandwidth 
D) none of the mentioned

Question 10

Bits can be sent over guided and unguided media as analog signal by

Accepted Answer

A) digital modulation 
B) amplitude modulation 
C) frequency modulation 
D) phase modulation 
A) digital modulation 
B) amplitude modulation 
C) frequency modulation 
D) phase modulation

Question 11

Random things in a communication system are

Accepted Answer

A) timing offset 
B) device frequency 
C) attenuation 
D) all of the mentioned 
A) timing offset 
B) device frequency 
C) attenuation 
D) all of the mentioned

Question 12

A band-pass signal has a Fourier transform equal to

Accepted Answer

A) one 
B) zero 
C) infinity 
D) cannot be determined 
A) one 
B) zero 
C) infinity 
D) cannot be determined

Question 13

A band-pass signal can be down-converted using

Accepted Answer

A) sine wave 
B) cosine wave 
C) time delayed wave 
D) none of the mentioned 
A) sine wave 
B) cosine wave 
C) time delayed wave 
D) none of the mentioned

Question 14

Which of the following is an example of physical layer vulnerability?

Accepted Answer

A) mac address spoofing 
B) route spoofing 
C) weak or non-existent authentication 
D) keystroke & other input logging 
A) mac address spoofing 
B) route spoofing 
C) weak or non-existent authentication 
D) keystroke & other input logging

Question 15

Which of the following is an example of data-link layer vulnerability?

Accepted Answer

A) mac address spoofing 
B) physical theft of data 
C) route spoofing 
D) weak or non-existent authentication 
A) mac address spoofing 
B) physical theft of data 
C) route spoofing 
D) weak or non-existent authentication

Question 16

In the digital communication system, signals in different frequency bands are

Accepted Answer

A) orthogonal 
B) non orthogonal 
C) orthogonal & non orthogonal 
D) none of the mentioned 
A) orthogonal 
B) non orthogonal 
C) orthogonal & non orthogonal 
D) none of the mentioned

Question 17

Which can be used for periodic and non periodic?

Accepted Answer

A) fourier series 
B) fourier transforms 
C) fourier series & transforms 
D) none of the mentioned 
A) fourier series 
B) fourier transforms 
C) fourier series & transforms 
D) none of the mentioned

Question 18

The portion of physical layer that interfaces with the media access control sublayer is called

Accepted Answer

A) physical signalling sublayer 
B) physical data sublayer 
C) physical address sublayer 
D) physical transport sublayer 
A) physical signalling sublayer 
B) physical data sublayer 
C) physical address sublayer 
D) physical transport sublayer

In down-conversion multiplication with cosine wave is followed by

Properties of impulse function are

Which of the following is an example of network layer vulnerability?

A base-band signal can be up-converted using

A band-pass signal has

Which of the following is an example of physical layer vulnerability?

Properties of Fourier transform are

Which of the following is an example of data-link layer vulnerability?

Fourier transform of a signal gives the

Bits can be sent over guided and unguided media as analog signal by

Random things in a communication system are

A band-pass signal has a Fourier transform equal to

A band-pass signal can be down-converted using

Which of the following is an example of physical layer vulnerability?

Which of the following is an example of data-link layer vulnerability?

In the digital communication system, signals in different frequency bands are

Which can be used for periodic and non periodic?

The portion of physical layer that interfaces with the media access control sublayer is called

Computer Networking and Internet Communications

Network Layer and OSI Model

Networking and Data Link Layer

Networking and Ethernet: Understanding the Basics

Bluetooth Technology, Wireless Lan, and Iot Protocols and Concepts

Network Layer and Packet Switching

Netware Protocol, Routing, and Routing Techniques

Networking and Transport Layer Protocols: OSPF IPV6, and UDP

TCP and Application Layer Protocols

Remote Objects, Web Development, and DNS

Domain Name System and Transport Layer Protocol

Hash Algorithms, Certificate Request, Firewall Types, and Dmz Setup

Filters

Exam 3: Physical and Network Layer Vulnerabilities and Communication System Concepts

In down-conversion multiplication with cosine wave is followed by

Properties of impulse function are

Which of the following is an example of network layer vulnerability?

A base-band signal can be up-converted using

A band-pass signal has

Which of the following is an example of physical layer vulnerability?

Properties of Fourier transform are

Which of the following is an example of data-link layer vulnerability?

Fourier transform of a signal gives the

Bits can be sent over guided and unguided media as analog signal by

Random things in a communication system are

A band-pass signal has a Fourier transform equal to

A band-pass signal can be down-converted using

Which of the following is an example of physical layer vulnerability?

Which of the following is an example of data-link layer vulnerability?

In the digital communication system, signals in different frequency bands are

Which can be used for periodic and non periodic?

The portion of physical layer that interfaces with the media access control sublayer is called

Computer Networking and Internet Communications

Network Layer and OSI Model

Networking and Data Link Layer

Networking and Ethernet: Understanding the Basics

Bluetooth Technology, Wireless Lan, and Iot Protocols and Concepts

Network Layer and Packet Switching

Netware Protocol, Routing, and Routing Techniques

Networking and Transport Layer Protocols: OSPF IPV6, and UDP

TCP and Application Layer Protocols

Remote Objects, Web Development, and DNS

Domain Name System and Transport Layer Protocol

Hash Algorithms, Certificate Request, Firewall Types, and Dmz Setup

Filters