Network Fundamentals Exam Review
Course Introduction
Network Fundamentals introduces students to the foundational concepts, technologies, and principles that underpin modern computer networks. The course covers essential topics such as network topologies, protocols, and communication models, with a focus on the OSI and TCP/IP layers. Students will learn about common networking devices (such as routers, switches, and hubs), IP addressing and subnetting, as well as basics of wireless and wired transmission. The goal is to provide a solid grounding in how data moves across networks and how different network components interact, preparing students for further study in networking and related fields.
Recommended Textbook Network+ Guide to Networks 5th Edition by Tamara Dean
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15 Chapters
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Chapter 1: An Introduction to Networking
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Q1) Describe the advantages client/server networks offer over peer-to-peer networks. Answer: Although client/server networks are typically more complex in their design and maintenance than peer-to-peer networks,they offer many advantages over peer-to-peer networks,such as:
·User logon accounts and passwords for anyone on a server-based network can be assigned in one place.
·Access to multiple shared resources (such as data files or printers)can be centrally granted to a single user or groups of users.
·Problems on the network can be monitored,diagnosed,and often fixed from one location.
·Servers are optimized to handle heavy processing loads and dedicated to handling requests from clients,enabling faster response time.
·Because of their efficient processing and larger disk storage,servers can connect more than a handful of computers on a network. Together,these advantages make client/server networks easier to manage,more secure,and more powerful than peer-to-peer networks.They are also more scalablethat is,they can be more easily added onto and extended - than peer-to-peer networks.
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Chapter 2: Network Standards and the OSI Model
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Sample Questions
Q1) Each network node has ____ types of addresses.
A) one
B) two
C) three
D) four
Answer: B
Q2) Serves as a translator.
Answer: E
Q3) Describe Physical layer protocol functions when receiving data.
Answer: When receiving data,Physical layer protocols detect and accept signals,which they pass on to the Data Link layer.Physical layer protocols also set the data transmission rate and monitor data error rates.However,even if they recognize an error,they cannot perform error correction.When you install a NIC in your desktop PC and connect it to a cable,you are establishing the foundation that allows the computer to be networked.In other words,you are providing a Physical layer.
Q4) Manages end-to-end delivery of data.
Answer: G
Q5) Generates signals as changes in voltage at the NIC.
Answer: I
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Chapter 3: Transmission Basics and Networking Media
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Q1) ____________________ is a term used by networking professionals to describe the nondata information that must accompany data for a signal to be properly routed and interpreted by the network.
Answer: Overhead
Q2) 3____________________ transmission involves one transmitter and multiple receivers.
Answer: Point-to-multipoint
Q3) ____________________ are the pieces of hardware that connect the wire to the network device.
Answer: Connectors
Q4) Ethernet is an example of a baseband system found on many LANs.
A)True
B)False
Answer: True
Q5) The maximum distance a signal can travel and still be interpreted accurately is equal to a segment's maximum length.
A)True
B)False
Answer: True
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Chapter 4: Introduction to TCP/IP Protocols
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Sample Questions
Q1) Define and describe DDNS (Dynamic DNS).
Q2) Any hosts on the Internet that need to look up domain name information.
Q3) In the domain name www.google.com,____ is the top-level domain (TLD).
A) http
B) www
C) google
D) com
Q4) ____ is more efficient than TCP for carrying messages that fit within one data packet.
A) IP
B) UDP
C) ICMP
D) IGMP
Q5) The command used to view IP information on a Windows XP or Windows Vista workstation is ifconfig.
A)True
B)False
Q6) ____________________ is a process of subdividing a single class of networks into multiple,smaller logical networks,or segments.
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Q7) In the context of TCP/IP,a packet is also known as a(n)____________________.
Chapter 5: Topologies and Ethernet Standards
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Q1) Explain how the star-wired bus topology works.Include a description of its drawbacks and benefits.
Q2) The most common 1-Gigabit Ethernet standard in use today is ____.
A) 1000Base-T
B) 1000Base-SX
C) 10GBase-SR
D) 1000Base-LX
Q3) The 10GBase-T standard is considered a breakthrough for transmitting 10 Gbps over ____ medium.
A) coaxial
B) twisted pair
C) fiber
D) atmosphere
Q4) Within an Ethernet frame,describe what happens if fewer than 46 bytes of data are supplied by the higher layers.
Q5) The smallest LANs do not have a backbone.
A)True
B)False
Q6) IEEE standard for fiber-optic Ethernet networks transmitting data at 1 Gbps.
Q7) Explain why it is important to understand logical topologies.
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Chapter 6: Network Hardware
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Q1) When selecting a NIC to install,explain what an administrator should do if a motherboard supports more than one kind of expansion slot.
Q2) Nearly all NICs contain a(n)____,the device that transmits and receives data signals.
A) keyboard port
B) mouse port
C) data transceiver
D) antenna
Q3) The primary difference between the two USB standards is ____.
A) connector pin organization
B) security limitations
C) speed
D) transceiver placement
Q4) A NIC's transmission characteristics are held in the adapter's ____.
A) slot
B) RAM
C) ROM
D) firmware
Q5) Explain hybrid routing protocols.Describe an example.
Q6) Connectivity device that subdivides a network into smaller logical pieces.
Page 8
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Chapter 7: WANs and Remote Connectivity
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Q1) The individual geographic locations connected by a WAN are known as ____.
A) WAN sites
B) WAN links
C) network service providers
D) central offices
Q2) Explain how a cable modem is utilized in broadband cable connections.
Q3) WANs typically send data over ____ available communications networks.
A) privately
B) publicly
C) individually
D) serially
Q4) Occurs when data travels from the customer to the carrier's switching facility.
Q5) ____ networking refers to dialing directly into a private network's or ISP's remote access server to log on to a network.
A) Remote
B) Direct
C) Dial-up
D) Virtual
Q6) Occurs when data travels from the carrier's switching facility to the customer.
Q7) Define and describea PSTN.
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Chapter 8: Wireless Networking
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Q1) Uses channels in the 5-GHz band and provides a maximum theoretical throughput of 54 Mbps.
Q2) Boasts a maximum throughput of 600 Mbps.
Q3) A unique characteristic of the 802.11 data frame is its ____ field.
A) Frame Control
B) Sequence Control
C) Data
D) Duration
Q4) Describe the FHSS and DSSS spread spectrum technologies.
Q5) ____ may use either the 2.4-GHz or 5-GHz frequency range.
A) 802.11a
B) 802.11b
C) 802.11g
D) 802.11n
Q6) Describe the wireless spectrum.
Q7) Describe the original design intentions for Bluetooth.Follow this with an explanation of why Bluetooth proved to be impractical for business LANs and what the technology supports today.
Q8) The receiver can be located anywhere within the transmitter's range.
Q9) Define reassociation and provide two examples explaining when it occurs. Page 10
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Chapter 9: Network Operating Systems
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Q1) A(n)____ is the record of a user that contains all of his properties,including rights to resources,password,name,and so on.
A) shell
B) container
C) account
D) directory
Q2) A service on the client workstation,called the ____________________,intercepts a request to determine whether it should be handled by the client or by the server.
Q3) Describe the two types of definitions in a directory's schema.
Q4) A protocol used to access information stored in a directory.
Q5) A(n)____ is a self-contained,well-defined task within a process.
A) task
B) thread
C) activity
D) job
Q6) A Windows XP client communicates with a Windows Server 2008 server using this file system.
Q7) Explain how UNIX and Linux handle multiprocessing.
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Q8) Describe how the Windows Server 2008,Standard Edition,memory model works.
Chapter 10: In-Depth TCP/IP Networking
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Sample Questions
Q1) POP3's design makes it best suited to users who retrieve their mail from the same workstation all the time.
A)True
B)False
Q2) IMAP4 servers require less storage space and usually more processing resources than POP servers do.
A)True
B)False
Q3) The gateways that make up the Internet backbone are called ____ gateways.
A) proxy
B) core
C) Internet
D) default
Q4) Explain what happens when an administrator issues the mtr command.
Q5) Explain how to calculate a host's network ID given its IPv4 address and subnet mask.
Q6) Uses ICMP ECHO requests to trace the path from one networked node to another,identifying all intermediate hops between the two nodes.
Q7) Useful only on networks that run Windows-based operating systems and NetBIOS.
Page 13
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Chapter 11: Voice and Video Over IP
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Q1) It is more difficult to transmit VoIP and video over IP signals over a packet-switched network than it is to transmit data signals.
A)True
B)False
Q2) All VoIP calls are carried over the Internet.
A)True
B)False
Q3) ____________________ performs the same functions as MGCP,but using different commands and processes.
Q4) Describe five features unique to IP telephones.
Q5) Many streaming video services - and nearly all of those issued over a public network,such as the Internet - are examples of ____ transmissions.
A) multicast
B) broadcast
C) unicast
D) telecast
Q6) An off-the-shelf workstation can be programmed to act like an IP telephone.
A)True
B)False
Page 14
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Chapter 12: Network Security
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Sample Questions
Q1) A security policy should state exactly which hardware,software,architecture,or protocols will be used to ensure security.
A)True
B)False
Q2) A firewall that protects only the computer on which it is installed.
Q3) ____ is a social engineering practice in which a person attempts to glean access or authentication information by posing as someone who needs that information.
A) Cracking
B) Hacking
C) War driving
D) Phishing
Q4) Describe who should conduct a security audit and advantages,if any.
Q5) Network security is more often compromised "from the inside" than from external sources.
A)True
B)False
Q6) Describe one potential flaw in CHAP and MS-CHAP authentication and explain how it is resolved.
Q7) A firewall that can view a data stream.
Page 15
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Chapter 13: Troubleshooting Network Problems
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Q1) Network engineers today might call any protocol analyzer tool a sniffer or ____________________.
Q2) When used on a copper-based cable,a continuity tester applies a small amount of ____ to each conductor at one end of the cable.
A) resistance
B) impedance
C) voltage
D) current
Q3) A sophisticated ____________________ will include a TDR (time domain reflectometer)that issues a signal on a cable and then measures the way the signal bounces back (or reflects)to the TDR.
Q4) Describe how a problem's solution might affect users and network functionality in terms of security.
Q5) Collects data about power quality.
Q6) Resistance is measured in ____.
A) ohms
B) hertz
C) centimeters
D) volts
Page 16
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Chapter 14: Ensuring Integrity and Availability
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Q1) Explain the concept of a backup strategy and provide a list of eight questions the strategy should address.
Q2) ____ offers the best performance.
A) RAID Level 0
B) RAID Level 1
C) RAID Level 3
D) RAID Level 5
Q3) A(n)____ UPS uses the A/C power from the wall outlet to continuously charge its battery,while providing power to a network device through its battery.
A) standby
B) offline
C) offsite
D) online
Q4) A program that disguises itself as something useful but actually harms your system is called a ____.
A) virus
B) worm
C) bot
D) Trojan horse
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Chapter 15: Network Management
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Sample Questions
Q1) For a cabling upgrade,the best way to ensure that future upgrades go smoothly is to carefully document the existing cable after making any upgrades.
A)True
B)False
Q2) Requires telecommunications carriers and equipment manufacturers to provide for surveillance capabilities.
Q3) Changes to ____________________ applications affect all users at once.
Q4) A ____ is a major change to a software package's existing code.
A) revision
B) change
C) patch
D) software upgrade
Q5) Explain how a network management application can present an administrator with results after data is collected.
Q6) Describes a flaw in a software application that causes some part of the application to malfunction.
Q7) Specifies what work a contractor should do.
Q8) Describe how to select an asset management tool.
Q9) Explain how to gather baseline data on a network.
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