Network Security
Midterm Exam
Course Introduction
Network Security is a comprehensive course that explores the principles, technologies, and practices used to secure networked systems against threats and vulnerabilities. Students learn about key concepts such as cryptography, authentication, firewalls, intrusion detection systems, and virtual private networks (VPNs). The course also covers risk assessment, security policies, and best practices for defending both wired and wireless networks. Through hands-on exercises and real-world case studies, students gain practical experience in identifying, responding to, and mitigating security breaches, preparing them to safeguard information and infrastructure in a connected world.
Recommended Textbook
Network+ Guide to Networks 7th Edition by Jill West
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12 Chapters
599 Verified Questions
599 Flashcards
Source URL: https://quizplus.com/study-set/2166
Page 2
Chapter 1: Introduction to Networking
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Sample Questions
Q1) The transfer of electricalcharge between two bodies,such as when a techniciantouches a computer component.
A)bandwidth
B)convergence
C)demarcation point
D)electrostatic discharge (ESD)
E)fail close
F)fail open
G)global account
H)payload
I)segment
J)upset failure
Answer: D
Q2) What is the name for the protocol data unit (PDU)of the Data Link layer?
A)packet
B)data
C)bit
D)frame
Answer: D
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Chapter 2: How Computers Find Each Other on Networks
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49 Verified Questions
49 Flashcards
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Sample Questions
Q1) What two names are used to describe the configuration in which internal and external DNS queries are handled by different DNS servers or by a single DNS server that is specially configured to keep internal and external DNS zones separate?
A)walled-DNS
B)split DNS
C)split-horizon DNS
D)DMZ DNS
Answer: B,C
Q2) What is a subnet mask,and how is it used?
Answer: A subnet mask is a 32-bit number that helps one computer find another.The32 bits are used to indicate what portion of an IP address is the network portionand what part is the host portion.Using this information,a computer can knowif a remote computer with a given IP address is on its own or a differentnetwork.
Q3) What range of ports is referred to as the "well-known" range of ports?
A)0-1023
B)1024-49151
C)49152-65535
D)500 - 1024
Answer: A
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Page 4
Chapter 3: How Data Is Transported Over Networks
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50 Verified Questions
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Sample Questions
Q1) What parameter can be combined with the traceroute command to instruct it to use ICMP echo requests instead of UDP datagrams?
A)-n
B)-p
C)-I
D)-d
Answer: C
Q2) What two fields below are used by IPv4 and IPv6 respectively to limit the number of times that a packet can be forwarded on a network?
A)hop limit
B)TTL
C)max path count
D)total time routing
Answer: A,B
Q3) The receiving host de-encapsulates the message at each layer in _______ order and then presents the payload to the receiving application.
Answer: reverse
Q4) The TCP ___________________ is performed before TCP transmits the actual data.
Answer: Three-way handshake
Page 5
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Chapter 4: Structured Cabling and Networking Elements
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Sample Questions
Q1) In order to simplify console access to computers in a rack,what device is typically used to provide a central portal for all devices on the rack?
A)KVM switch
B)AVR switch
C)terminal server
D)multi-monitor breakout cable
Q2) The flow of electrical power at a steadyrate in only one direction.
A)airflow
B)alternating current (AC)
C)collision domain
D)direct current (DC)
E)FCS (frame check sequence)
F)inverter
G)NAS (Network attached storage)
H)power converter
I)rack unit (RU)
J)voltage regulator
Q3) Explain how equipment should be configured in a rack to best optimize airflow and temperature.
Q4) Explain the difference between an inverter and a rectifier.
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Chapter 5: Network Cabling
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Sample Questions
Q1) The most common multiplexing technology used in conjunction with fiber optics is which option below?
A)DWDM
B)CWDM
C)FDM
D)WDM
Q2) What is the maximum supported throughput of a CAT6 cable?
A)100 Mbps
B)1 Gbps
C)10 Gbps
D)100 Gbps
Q3) What Ethernet standard below is also referred to as "thinnet"?
A)100Base2
B)10Base2
C)100BaseT
D)10BaseT
Q4) Multimode fiber contains a core that is larger than a single mode fiber core.
A)True
B)False
Q5) Define how phase affects an analog signal.
Page 7
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Chapter 6: Wireless Networking
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Sample Questions
Q1) Ideally,stations must remain within what range of an access point in order to maintain optimal transmission speeds?
A)100 feet
B)200 feet
C)300 feet
D)600 feet
Q2) How many address fields exist in an 802.11 frame?
A)2
B)3
C)4
D)6
Q3) Which 802.11 technology is the first Wi-Fi standard to approach gigabit Ethernet capabilities,and operates on the 5 GHz band?
A)802.11a
B)802.11b
C)802.11n
D)802.11ac
Q4) Access points that include routing functions are also called _______________.
Q5) Describe the hidden node problem,and explain how it can be mitigated.
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Chapter 7: Cloud Computing and Remote Access
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Sample Questions
Q1) How often should administrators and network users be required to change their password?
A)60 days
B)90 days
C)120 days
D)180 days
Q2) What encryption protocol was designed as more of an integrity check for WEP transmissions rather than a sophisticated encryption protocol?
A)Kerberos
B)TKIP
C)AES
D)EAP
Q3) What authentication protocol sends authentication information in cleartext without encryption?
A)PAP
B)MS-CHAP
C)MS-CHAPv2
D)EAP
Q4) Describe the three way handshake process as used by CHAP.
Q5) Describe how public key encryption works.
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Chapter 8: Network Risk Management
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Sample Questions
Q1) What type of virus are dormant until a specific condition is met,such as the changing of a file or a match of the current date?
A)encrypted virus
B)logic bomb
C)boot sector virus
D)worm
Q2) What two types of agents are used to check compliance with network security policies?
A)dissolvable agent
B)temporary agent
C)persistent agent
D)permanent agent
Q3) What two options below are IDS implementations used to provide additional security on a network?
A)IIDS
B)PIDS
C)HIDS
D)NIDS
Q4) Define what a file-infector virus is.
Q5) Describe two different implementations of IDS that can be deployed on a network.
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Chapter 9: Unified Communications and Network Performance Management
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Sample Questions
Q1) A type of link aggregation in which two ormore NICs work in tandem to handle traffic to and from asingle node.
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
Q2) What component of SIP is a server that responds to user agent clients' requests for session initiation and termination?
A)proxy server
B)registrar server
C)user agent server
D)redirect server
Q3) Describe the PCI DSS (Payment Card Industry Data Security Standard).
Q4) What are the minimum functions supported by all network monitoring tools?
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Chapter 10: Network Segmentation and Virtualization
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Sample Questions
Q1) What protocol is used to provide a common language between virtualized service applications and a network's physical devices?
A)VRRP
B)OpenFlow
C)CommonStack
D)OpenArch
Q2) Which supernet mask below would allow an organization to cover the following networks with one routing entry: 192.168.0.0/24,192.168.1.0/24,192.168.2.0/24,192.168.3.0/24?
A)255.255.255.0
B)255.255.252.0
C)255.255.255.128
D)255.255.240.0
Q3) What two items make up a Bridge ID?
A)2 byte priority field
B)MAC address
C)relevant port number
D)software version
Q4) In ______________,a vNIC relies on the host machine to act as a NAT device.
Q5) What is the difference between a default VLAN and a native VLAN?
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Chapter 11: Wide Area Networks
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Sample Questions
Q1) A 4G cellular network technologythat,in its latest version (called LTE-Advanced),achievesdownlink data rates of up to 3 Gbps and uplink rates of up to1.5 Gbps.AT&T and Verizon have adopted LTE for theirhigh-speed wireless data networks.
A)ATM (Asynchronous Transfer Mode)
B)BRI (Basic Rate Interface)
C)CIR (committed information rate)
D)DSLAM (DSL access multiplexer)
E)geostationary orbit
F)LTE (Long Term Evolution)
G)Metro Ethernet
H)ring topology WAN
I)smart jack
J)transponder
Q2) The customer's endpoint device on the WAN is called the __________________.
Q3) What is the maximum amount of throughput provided by an OC-12?
A)51.84 Mbps
B)155.52 Mbps
C)622.08 Mbps
D)1244.16 Mbps
Q4) List some of the advantages provided by Metro Ethernet.
Page 13
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Chapter 12: Industrial and Enterprise Networking
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Sample Questions
Q1) What two terms describe the process that can reveal a great deal of information,called ESI (electronically stored information)?
A)active data
B)eDiscovery
C)electronic discovery
D)ambient data
Q2) What type of device can be used to erase contents of a hard drive using a magnetic field?
A)electromagnetic resonance chamber
B)degausser
C)targeted magneto-wipe
D)polarized magnet
Q3) What should be in a disaster recovery plan that relates to computers?
Q4) What team member role focuses on only one thing: solving the problem as quickly as possible?
A)dispatcher
B)manager
C)technical support specialist
D)public relations specialist
Q5) Describe a service level agreement.
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