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mine#1_managment_networkCoursera

Total questions: 50

Worksheet time: 25mins

Name
Class
Date
1.

When a flow of information occurs from point a to point b and then back from point b to point a over a second medium that is considered a _____.

a)

channel

b)

circuit

c)

conduit

d)

route

2.

Communication that can travel in both directions simultaneously is referred to as _____.

a)

simplex

b)

half-duplex

c)

half-simplex

d)

full duplex

3.

Communications networks that connect a few rooms or buildings are called _____.

a)

local area networks (LANs)

b)

wide area networks (WANs)

c)

fiber enabled networks (FENs)

d)

metropolitan area networks (MANs)

4.

When describing physical network connections, the jack where a cable connects on a networking card or the computer systems unit is called a _____.

a)

dongle

b)

inlet

c)

outlet

d)

port

5.

Most contemporary Category 5 or 6 wired computer connections use a cabling standard known as _____.

a)

RJ-45

b)

RJ-46

c)

waveguide

d)

TR-32

6.

A(n) _____ is programmed or can learn which devices are connected to which physical connections, but they use more complex protocols that regulate their communications to move data where it is needed.

a)

switch

b)

hub

c)

router

d)

Waveguide

7.

_____ are standards that define how technology interacts at different levels.

a)

Protocols

b)

Routers

c)

Contracts

d)

Agreements

8.

The Open Systems Interconnection or OSI reference model is _____.

a)

a detailed requirement that documents how all computer systems interact when moving textual data on the Internet

b)

a government mandated technical specification required for any computer connecting to the Internet

c)

a specialty standard used by only a few companies in order to prevent errors in transmission

d)

a general model used to describe how the various layers of technology manipulate data as it transferred from one place in the network to another

9.

The top-layer of the OSI Model is called the _____ layer and controls how software interacts between the user and the rest of the layers.

a)

Physical

b)

Application

c)

Transport

d)

Session

10.

In order for TCP/IP IPv4 addresses to identify both networks and specific computers the protocol uses a _____.

a)

stack pointer

b)

subnet mask

c)

hidden moderator

d)

Internet mask

11.

In order for a network to assign network addresses as they are needed they use _____.

a)

FTP - File Transfer Protocol

b)

LAN - Local Area Networking

c)

DHCP - Dynamic Host Configuration Protocol

d)

RJE - Remote Job Entry

12.

Most contemporary wired Local Area Networks use a protocol called _____ to manage the physical layer.

a)

TokenNet

b)

WiFi

c)

RADIUS

d)

Ethernet

13.

The Internet service _____ was developed in 1989 by Tim Berners-Lee.

a)

World Wide Web (WWW)

b)

File Transfer Protocol (FTP)

c)

email

d)

Terminal Emulation (telnet:)

14.

To access to World Wide Web the user directly interacts with a program called a _____ such as Firefox or Chrome.

a)

browser

b)

server

c)

protocol stack

d)

spinner

15.

The content the user sees when accessing the World Wide Web is received as _____.

a)

Secure Message Language (SML)

b)

Hypertext Markup Language (HTML)

c)

Web Display Markup (WDM)

d)

Terminal Emulation Script (TES)

16.

_____ allows users to connect a remote shell to run programs, view files, and perform a variety of other operations as if they were using the system locally.

a)

The World Wide Web (WWW)

b)

Terminal Emulation (telnet)

c)

Skunkworks File Manager (SFM)

d)

The File Transfer Protocol (FTP)

17.

_____ provides a communication framework with centralized directories that hold a variety of useful data such as directory services and user rights.

a)

The World Wide Web (WWW)

b)

Terminal Emulation (telnet)

c)

Lightweight Directory Access Protocol (LDAP)

d)

The File Transfer Protocol (FTP)

18.

A secure replacement for FTP and telnet is available by using _____.

a)

WWW

b)

SFTP and Qdisk

c)

SFTP and Secure Shell

d)

SMTP and POP3

19.

For communication to occur, each of the following must be involved EXCEPT:

a)

a sender

b)

a receiver

c)

a medium

d)

an observer

20.

Communications that can travel in both directions but has to alternate turns is referred to as _____.

a)

simplex

b)

half-duplex

c)

half-simplex

d)

full duplex

21.

Two-directional communication media in wide use today is all of the following EXCEPT:

a)

cables

b)

radio waves

c)

optical discs

d)

optical fibers

22.

A(n) _____ receives a message from one computer and then relays it to all of the other computers connected to it.

a)

switch

b)

hub

c)

router

d)

waveguide

23.

In computer network _____ are used to describe the cost or number of connection it expects a data packet to take before it reaches the next destination.

a)

jumps

b)

links

c)

hops

d)

humps

24.

The most popular and prevalent protocol stack in use today is _____.

a)

TCP/IP

b)

Token Ring

c)

CICS

d)

WAN-link

25.

Most contemporary wired Local Area Networks use a protocol called _____ to manage the physical layer.

a)

TokenNet

b)

WiFi

c)

RADIUS

d)

Ethernet

26.

The element of the TCP/IP protocol stack that lets users access Web locations with names instead of numbers is the _____.

a)

Domain Name System (DNS)

b)

File Transfer Protocol (FTP)

c)

Address Relocation Protocol (ARP)

d)

Route Information Protocol (RIP)

27.

Which of the following is not an email-oriented protocol?

a)

SMTP

b)

FTP

c)

POP3

d)

IMAP

28.

_____ is a simple method of transferring files between computer systems and operates in the Application layer and only uses TCP for communication.

a)

The World Wide Web (WWW)

b)

The Terminal Emulation protocol (telnet)

c)

The Skunkworks File Manager (SFM)

d)

The File Transfer Protocol (FTP)

29.

A(n) _____ is a combination of hardware and software that filters or restricts specific information from moving between the outside network and the inside network.

a)

switch

b)

IDPS

c)

router

d)

firewall

30.

A(n) _____ is a firewall which examines the header information of data packets that come into a network and determines whether to deny them or forward them to the next network connection, based on its configuration rules.

a)

stateful packet inspection firewall

b)

packet filtering firewall

c)

application layer proxy firewall

d)

next generation firewall

31.

The ____ firewall deployment model is when the organization places multiple devices between the inside and outside networks, in an area of the network known as the demilitarized zone or DMZ.

a)

bastion host

b)

screened host

c)

screened subnet

d)

double access

32.

Most modern firewalls use complicated configurations typically with _____ of rules.

a)

a few

b)

hundreds

c)

millions

d)

dozens

33.

When a firewall is configured which of the following is NOT true:

a)

all firewall devices are not accessible or manageable directly from the public network

b)

all ICMP data should be allowed

c)

all email traffic should only be routed to an email server

d)

terminal emulation via telnet connections should be denied

34.

Using virtual machine environments to host firewalls adds _____ to the organization in simplifying the operation of a firewall, but can make configuring it more difficult.

a)

flexibility

b)

rigidity

c)

ease of configuring

d)

Fragility

35.

A(n) _____ is the cybersecurity version of a burglar alarm.

a)

firewall

b)

log file monitor

c)

intrusion detection system

d)

data exfiltration system

36.

A(n) _____ is an IDPS that resides on a particular computer or server, known as the host, and monitors activity only on that system.

a)

host-based IDPS (HIDPS)

b)

router-based IDPS (RIDPS)

c)

cloud-based IDPS (CIDPS)

d)

network-based IDPS (NIDPS)

37.

The process of configuring the IDPS so that it minimizes both the False Positive and False Negative rates is called _____.

a)

tuning

b)

tweaking

c)

rumbling

d)

ramping

38.

A Virtual Private Network or VPN uses encryption technology to create _____

a)

a persistent connection between two or three points

b)

a persistent connection between two points

c)

a secured connection between two points

d)

a secured connection between two or more points

39.

Using IPSec’s _____ mode, two VPN servers are set up to communicate with each other and any traffic that is destined for the other network is first encrypted and embedded in a packet that is addressed by one VPN server for the other.

a)

header

b)

packet

c)

byte

d)

tunnel

40.

Using IPSec’s _____ mode, the user makes a client-to-network connection by signing in to activate a piece of software, then log in with their credentials to establishes a connection with the destination network.

a)

transport

b)

packet

c)

byte

d)

tunnel

41.

_____ is the process of converting a readable message into a form that cannot be understood by unauthorized individuals or systems

a)

Decryption

b)

Encryption

c)

Plaintext

d)

Ciphertext

42.

_____ describes the processes involved in encoding and decoding messages so that others cannot understand them.

a)

Cryptomancy

b)

Cryptology

c)

Cryptanalysis

d)

Cryptography

43.

_____ is the process of deciphering the original message (or plaintext) from an encrypted message (or ciphertext), without knowing the algorithms and keys used to perform the encryption.

a)

Cryptomancy

b)

Cryptology

c)

Cryptanalysis

d)

Cryptography

44.

_____ encryption uses that the same algorithm and key to both encipher and decipher the message, also known as private key encryption.

a)

Symmetric

b)

XOR

c)

Asymmetric

d)

XAND

45.

A(n) _____ will read the request, and then retrieve the information requested itself. It may also cache frequently requested information to speed up operations

a)

stateful packet inspection firewall

b)

packet filtering firewall

c)

application layer proxy firewall

d)

next generation firewall

46.

One administrative challenge is that each firewall brand is _____.

a)

fairly interchangeable and uses a common configuration language

b)

unique but using a common configuration language

c)

unique and may have its own configuration language and rules

d)

the same as every other

47.

A(n) _____ is the cybersecurity version of a burglar alarm.

a)

firewall

b)

log file monitor

c)

intrusion detection system

d)

data exfiltration system

48.

A(n) _____ is an IDPS that resides on a computer or appliance connected to a segment of an organization’s network and monitors traffic on that segment, looking for indications of ongoing or successful attacks.

a)

host-based IDPS (HIDPS)

b)

router-based IDPS (RIDPS)

c)

cloud-based IDPS (CIDPS)

d)

network-based IDPS (NIDPS)

49.

Virtually all IDPS have the capability to _____.

a)

modify their own configuration

b)

turn off the network connection

c)

modify a connected router's configuration

d)

log suspicious activity

50.

The _____ level is the predefined assessment level that triggers a predetermined response when surpassed.

a)

tamping

b)

clipping

c)

ramping

d)

chopping