Computer Networks
Final Test Solutions
Course Introduction
Computer Networks is a foundational course that explores the design, implementation, and management of modern communication networks. Students are introduced to networking concepts such as protocols, architecture, and standards that enable the interconnection of devices and systems. Key topics include the OSI and TCP/IP models, data transmission methods, network topologies, switching and routing mechanisms, IP addressing, and network security. Through a combination of theoretical study and practical exercises, students gain hands-on experience configuring network devices and troubleshooting connectivity issues, preparing them for advanced study or careers in networking and information technology.
Recommended Textbook Network+ Guide to Networks 7th Edition by Jill West
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12 Chapters
599 Verified Questions
599 Flashcards
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Chapter 1: Introduction to Networking
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Sample Questions
Q1) An open electrical circuit as a result of a failed circuit breaker is considered to be what type of failure system?
A)fail-open
B)fail-close
C)fail-tolerant
D)fail-dynamic
Answer: B
Q2) Which of the following is not one of the disadvantages of peer-to-peer networks?
A)They lack scalability
B)They are not necessarily secure
C)They are impractical for connecting large numbers of computers
D)They centralize user account logins
Answer: D
Q3) The centralized directory database that contains user account information and security for the entire group of computers in a Windows domain is called
Answer: Active Directory (AD)
Q4) ___________ is an unsecured client server application / protocol that transfers files between two computers.
Answer: FTP
Page 3
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Chapter 2: How Computers Find Each Other on Networks
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Sample Questions
Q1) A protocolthat runs in the Session and Transport layers of the OSImodel and associates NetBIOS names with workstations.
A)A (Address)record
B)AAAA (Address) record
C)Automatic Private IP Addressing (APIPA)
D)device ID
E)Dynamic Network Address Translation (DNAT)
F)Internet Corporation for Assigned Names and Numbers (ICANN)
G)NetBIOS
H)packet analyzer
I)PTR (Pointer)record
J)Static Network Address Translation (SNAT)
Answer: G
Q2) What RFC outlines recommendations for private IP addresses?
A)RFC 1900
B)RFC 1918
C)RFC 638
D)RFC 2332
Answer: B
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4
Chapter 3: How Data Is Transported Over Networks
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Sample Questions
Q1) What is the difference between static and dynamic routing?
Answer: Static routing is a technique in which a network administrator configures a routing table to direct messages along specific paths between networks.Static routes are appropriatein certain situations,such as the static route between a small business and its ISP.However,static routes used to traverse several networks don't account for occasional network congestion,failed connections,or device moves,and they require human intervention.Dynamic routing,on the other hand,automatically calculates the best path between two networksand accumulates this information in the routing table.If congestion or failures affectthe network,a router using dynamic routing can detect the problems and reroute messagesthrough a different path.By default,when a router is added to a network,dynamic routingensures that the new router's routing tables are updated.
Q2) ICMP (Internet Control Message Protocol)is a _______ layer core protocol that reports on the success or failure of data delivery.
Answer: Network
Q3) As a network support technician,you only need to know how to support IPv6.
A)True
B)False
Answer: False
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Page 5
Chapter 4: Structured Cabling and Networking Elements
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Sample Questions
Q1) Each type of cable has a prescribed bend radius ,which is the radius ofthe maximum arc into which you can loop a cable without impairing data transmission.
A)True
B)False
Q2) What steps should be taken to manage documentation at a cabling plant?
Q3) The TIA/EIA standard for wall jacks in a work area require that at least one outlet be provided for data and one for voice.
A)True
B)False
Q4) Select the two terms below that are used to describe a UPS that provides continuous voltage to a device by switching virtually instantaneously to the battery when it detects a loss of power:
A)offline UPS
B)standby UPS
C)standby power supply
D)failover power supply
Q5) To ensure that any _____________ are detected,frames are made large enough to fill the entire cable during transmission.
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Chapter 5: Network Cabling
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Sample Questions
Q1) An unwanted connection,such as when exposedwires touch each other.
A)1000Base-LX
B)1000Base-TX
C)ASCII
D)Cat (category)
E)DWDM (Dense Wavelength Division Multiplexing)
F)far end cross-talk (FEXT)
G)multiplexing
H)short circuit
I)throughput
J)wavelength
Q2) What is modulation? Provide two examples of how it can be used.
Q3) Multimode fiber contains a core that is larger than a single mode fiber core.
A)True
B)False
Q4) Standard PoE devices must be provided with how much power in order to function?
A)5 watts
B)12 watts
C)15.4 watts
D)25.5 watts
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Chapter 6: Wireless Networking
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Sample Questions
Q1) The WPS PIN is vulnerable to brute force attacks.
A)True
B)False
Q2) Elaborate on the three different types of wireless network topologies.
Q3) A type of antenna that issues andreceives wireless signals with equal strength and clarity in alldirections.This type of antenna is used when many differentreceivers must be able to pick up the signal,or when thereceiver's location is highly mobile.
A)active scanning
B)bluesnarfing
C)data frame
D)diffraction
E)goodput
F)omnidirectional antenna
G)unidirectional antenna
H)war chalking
I)war driving
J)WPS attack
Q4) Explain the difference between a unidirectional antenna and an omnidirectional antenna.
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Chapter 7: Cloud Computing and Remote Access
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Sample Questions
Q1) A SecurID key chain fob from RSA security generates a password that changes how often?
A)every 20 seconds
B)every 30 seconds
C)every 60 seconds
D)every 70 seconds
Q2) Which type of cloud service model involves hardware services that are provided virtually,including network infrastructure devices such as virtual servers?
A)IaaS
B)PaaS
C)SaaS
D)XaaS
Q3) After L2TP establishing a VPN tunnel,GRE is used to transmit L2TP data frames through the tunnel.
A)True
B)False
Q4) The _________________ cloud service model provides virtual environments online that can be tailored to the needs of developers.
Q5) Describe the three way handshake process as used by CHAP.
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Chapter 8: Network Risk Management
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Sample Questions
Q1) Which option below is a standard created by the NSA that defines protections against radio frequency emanations?
A)EmSec
B)TEMPEST
C)RFGUARD
D)BlockSec
Q2) A program that replicates itself to infect more computers,either through network connections when it piggybackson other files or through exchange of external storagedevices,such as USB drives,passed among users.
A)acceptable use policy (AUP)
B)backdoor
C)HIDS (host-based intrusion detection system)
D)HIPS (host-based intrusion prevention system)
E)NIDS (network-based intrusion detection system)
F)proxy service
G)smurf attack
H)TEMPEST
I)virus
J)worm
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Page 10
Chapter 9: Unified Communications and Network Performance Management
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Sample Questions
Q1) What two log files are used by older versions of Unix and newer version of Linux to store log information?
A)/var/log/messages
B)/var/log/syslog
C)/var/log/log
D)/var/adm/messages
Q2) Describe the Communications Assistance for Law Enforcement Act (CALEA).
Q3) A streaming video,either on demand or live,that isdelivered via the Web.
A)AF (Assured Forwarding)
B)CALEA (Communications Assistance for Law Enforcement Act)
C)network monitor
D)EF (Expedited Forwarding)
E)load balancing
F)NIC teaming
G)PSTN (Public Switched Telephone Network)
H)SS7 (Signaling System 7)
I)time-shifted video
J)Webcast
Q4) Describe the PCI DSS (Payment Card Industry Data Security Standard).
Q5) Provide detail on the three different versions of SNMP.
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Chapter 10: Network Segmentation and Virtualization
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Q1) What is the difference between a default VLAN and a native VLAN?
Q2) A centrally managed DHCP server can provide DHCP to multiple VLANs by configuring a _________________.
Q3) The use of virtualization allows for isolation of each guest system such that problems on one system do not affect another system.
A)True
B)False
Q4) What type of VLAN automatically receives all untagged frames?
A)Default VLAN
B)Native VLAN
C)Mirrored VLAN
D)Untagged VLAN
Q5) To eliminate the possibility of traffic loops on switches and bridges,the ________________ is used.
Q6) Because Layer 2 switches use MAC addresses for communication,and each port is assigned a MAC address,VLANs are considered a Layer 2 solution for segmenting a network.
A)True
B)False
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Chapter 11: Wide Area Networks
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Sample Questions
Q1) What xDSL standard is the most popular?
A)VDSL
B)G.Lite
C)ADSL
D)HDSL
Q2) What two competing standards exist for cell phone networks?
A)ATM
B)WiMAX
C)GSM
D)CDMA
Q3) What is the difference between a DTE and a DCE?
Q4) Outline the differences between a LAN and a WAN connection.
Q5) Which option below is an advantage of leasing a frame relay circuit over leasing a dedicated circuit?
A)You are guaranteed to receive the maximum amount of bandwidth specified in the circuit contract
B)You pay only for the bandwidth you've used.
C)The paths that your data will take are always known.
D)Frame relay is a newly established network technology with more features than other technology.
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Chapter 12: Industrial and Enterprise Networking
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Q1) What should be in a disaster recovery plan that relates to computers?
Q2) The time period in which a change can be implemented is known as what option below?
A)change period
B)maintenance window
C)work order time
D)service affecting work interval
Q3) ________________ is a process of investigating deeper data on a computerand will essentially autopsy the computer to discover hidden data,such asdeleted files and file fragments,and who has accessed that data and when.
Q4) What type of physical security solution involves a device that scans an individual's unique physical characteristics?
A)proximity access
B)biorecognition access
C)AIT access
D)keypad access
Q5) The goal of a disaster recovery plan is to ensure ______________.
Q6) Explain what a memorandum of understanding (MOU)is.
Q7) Describe a service level agreement.
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