Advanced Networking
Textbook Exam Questions
Course Introduction
Advanced Networking delves into the concepts, protocols, and architectures that underpin modern large-scale and high-performance computer networks. The course covers advanced topics such as routing algorithms, network security, quality of service (QoS), wireless and mobile networks, and emerging technologies like software-defined networking (SDN) and network function virtualization (NFV). Through theoretical lectures and practical lab sessions, students develop in-depth understanding and hands-on skills in configuring, analyzing, and troubleshooting complex network environments, preparing them for roles in designing, managing, and securing advanced network infrastructures.
Recommended Textbook
Business Data Communications Infrastructure Networking and Security 7th Edition by William Stallings
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Chapter 1: Introduction
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Q1) An architecture where multiple computers provide database functions,file services,printing services,and other specialized functions on a shared basis for many users is called a _____________ architecture.
Answer: client / server
Q2) Cloud computing is being embraced by all major business software vendors with the exception of Oracle.
A)True
B)False
Answer: False
Q3) The basic building block of any communications facility is the transmission line. A)True
B)False
Answer: True
Q4) __________ is a U.S.federal agency that deals with measurement science, standards,and technology related to U.S.government use and to the promotion of U.S.private sector innovation.
Answer: NIST (National Institute of Standards and Technology)
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Chapter 2: Business Information
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Q1) When _________ compression is used,irreversible changes are made to the original file that diminish the quality of the original audio stream when the receiver decompresses the file.
Answer: lossy
Q2) The time interval between when a user presses a key and when the result of that action arrives at his or her workstation is called the:
A)response time
B)turn-around time
C)think time
D)delay time
Answer: A
Q3) When using data communications with 8-bit codes,the number of alphabetic symbols
A)must be exactly 256
B)must be exactly 512
C)can be greater than 1024 bytes
D)must be less than 256
Answer: D
Q4) _________ is a 16-bit code that is backward compatible with IRA / ASCII.
Answer: Unicode
Page 4
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Chapter 3: Distributed Data Processing
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Q1) Two types of distributed data processing are horizontal and _________ partitioning.
Answer: vertical
Q2) Extranets use different protocols and applications than are used in Intranets.
A)True
B)False
Answer: False
Q3) Like the Internet,intranets are difficult to manage.
A)True
B)False
Answer: False
Q4) Which of the following is common in today's data centers?
A)redundant / backup power supplies
B)environmental controls
C)data communication connections
D)all of the above
Answer: D
Q5) Four categories of virtualization are: operating system virtualization,server virtualization,storage virtualization and __________ virtualization.
Answer: network
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Chapter 4: Data Transmission
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Q1) Referring to Shannon's equation,in order to increase the data rate of a signal,we need only increase the bandwidth.
A)True
B)False
Q2) ________ is a measure of the position of the waveform relative to a given moment of time within the period of a signal.
Q3) A sine wave is a periodic signal that:
A)has equal phase,frequency and amplitude
B)can be measured in terms of its amplitude,frequency and phase
C)has a maximum peak amplitude equal to its frequency
D)can be either digital or analog
Q4) For guided media such as twisted pair,coaxial cable,and optical fiber,the most significant sources of signal quality impairments are: attenuation and attenuation distortion,delay distortion,and __________.
Q5) Typically,crosstalk does not have a debilitating effect on signal quality.
A)True
B)False
Q6) The __________ is the maximum height of the wave above or below a given reference point.
Page 6
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Chapter 5: Data Communication Fundamentals
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Q1) _________ data take on continuous values on some interval; for example,voice and video are continuously varying patterns of intensity.
Q2) An error-detecting scheme that employs a unique prime number is called:
A)parity checking
B)frame sequence checking
C)error checking and error correcting
D)cyclic redundancy check
Q3) For amplitude,frequency or phase shift keying,that respective characteristic of the carrier wave is change to indicate the next binary digit; these binary digits can be represented by this signal change or a lack of signal change.
A)True
B)False
Q4) Both analog and digital information can be encoded as either analog or digital signals.
A)True
B)False
Q5) The mapping from binary digits to signal elements is the ________ scheme.
Q6) A _______ modem permits Internet access over cable television networks.
Q7) Converting digital data to analog signals involves the use of a _________.
Page 7
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Chapter 6: Data Link Control and Multiplexing
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Q1) Stop-and-wait is the simplest form of flow control.
A)True
B)False
Q2) ________ is popular for constructing private networks within geographically dispersed organizations and is increasingly used to provide business-user access to public telephone networks
A)UTI-1
B)PBX
C)FDM
D)T-1
Q3) ________ is used on SONET to support long-haul voice,data,and video applications over fiber-optic circuits.
A)WDM
B)TDM
C)DMT
D)LMV
Q4) The set of time slots dedicated to one source,from frame to frame,is called a ________.
Q5) One of the most popular forms of synchronous TDM is known as ________.
Page 8
Q6) ________ is used in fiber-to-the-home (FTTH)systems.
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Chapter 7: The Internet
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Q1) ________ is based on a hierarchical database containing resource records that include the name,IP address,and other information about hosts.
Q2) The development of an internationally distributed collection of multimedia files addressed using universal resource locators led to the:
A)Telnet package
B)email system
C)world-wide-web
D)FTP package
Q3) A ________ is a site that has a collection of telecommunications equipment and usually refers to ISP or telephone company sites.
A)POP
B)NSP
C)CPE
D)IXP
Q4) Each packet includes a unique numeric address of the destination host,which is referred to as an __________ because the address is carried in an IP packet.
Q5) The networks connected at an IXP are owned and operated by _________.
Q6) _______ provides a universal language for remote computer terminals.
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Chapter 8: Tcp / Ip
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Q1) ________ is an Internet-based standard and is the framework for developing a complete range of computer communications standards.
Q2) The newer IPv6 specification uses addresses to identify hosts that consist of:
A)128 bits
B)64 bits
C)32 bits
D)16 bits
Q3) The ________ layer covers the physical interface between a data transmission device and a transmission medium or network.
A)physical
B)transport
C)application
D)network
Q4) In 1995 the Internet Engineering Task Force issued a specification for a next-generation IP; this specification was turned into a standard in 1996 known as
Q5) UDP provides guaranteed delivery of messages.
A)True
B)False
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Chapter 9: Client Server, intranet, and Cloud Computing
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Q1) With __________ binding,a connection that is set up for an RPC is sustained after the procedure return.
Q2) The client / server architecture is a blend of decentralized and centralized computing.
A)True
B)False
Q3) ________ machines are typically single-user PCs or workstations that provide a highly user-friendly interface to the end user.
A)Client
B)Host
C)Server
D)Networked
Q4) In a 3-tier client-server implementation,the client is typically a "thin client".
A)True
B)False
Q5) ________ is a set of drivers,APIs,or other software that improves connectivity between a client application and a server.
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Chapter 10: Internet-Based Applications
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Q1) Email functions visible to a user,such as facilities for preparing and submitting messages,filing,replying,and forwarding,are considered:
A)message transfer agent functions
B)client functions
C)email client functions
D)user agent functions
Q2) A number of protocols are instrumental in supporting multimedia traffic.
A)True
B)False
Q3) End users should not run virus protection software that examines incoming mail because the administrators of the email servers have already checked for viruses.
A)True
B)False
Q4) A _______ is a network data object or service that can be identified by a URL.
Q5) ________ is the protocol used for transfer of mail from a user agent to an MTA and from one MTA to another.
Q6) VoIP,streaming audio,and streaming video are considered _________ applications even though each involves a single media type.
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Chapter 11: Internet Operation
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Q1) Which of the following describes class B networks?
A)Many networks,each with a few hosts
B)Medium number of networks,each with a medium number of hosts
C)Few networks,each with many hosts
D)A network dedicated to multicast applications
Q2) Which of the following describes class A networks?
A)Many networks,each with a few hosts
B)Medium number of networks,each with a medium number of hosts
C)Few networks,each with many hosts
D)A dedicated network,with a set number of hosts
Q3) Both the broadcast and multiple unicast strategies are inefficient because they generate unnecessary copies of the source packet.
A)True
B)False
Q4) A practical application for multicasting is:
A)teleconferencing
B)multimedia
C)database
D)all of the above
Q5) IPv6 allows three types of addresses: unicast,anycast,and _________.
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Chapter 12: Lan Architecture and Infrastructure
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Q1) Which of the following is NOT one of the characteristics of a building wiring scheme using a structured cabling system?
A)the scheme refers to the wiring within a commercial building
B)the scheme must accommodate the need for separate cabling systems for each of data,voice,and video applications
C)the scope of the system includes cabling to support of all types of information transfer,including voice,LANs,video and image
Transmission,and other forms of data transmission
D)the cable layout is designed to encompass distribution to all work areas within the building,so that relocation of equipment does not require rewiring but simply requires plugging the equipment into a preexisting outlet in the new location
Q2) Sometimes called computer room networks,__________ networks are used to interconnect large systems such as mainframes,supercomputers,and mass storage devices that typically need to transfer large volumes of data between one another.
Q3) __________ are the termination points for all of the cabling and where the networking equipment will be located.
Q4) Drawbacks to a single-LAN strategy are: reliability,capacity,and _________.
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Chapter 13: Ethernet, switches, and Virtual Lans
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Q1) A hub uses a ________ wiring arrangement to attach stations to the hub.
Q2) A _________ is a logical subgroup within a LAN that is created by software rather than by physically moving and separating devices.
Q3) A _________ provides a means of interconnecting similar LANs.
Q4) Segmenting a larger network into ___________ domains can help to prevent a fault in one network segment from affecting the entire network.
Q5) The _________ specifies the station that sent the frame.
A)MAC client data
B)SFD
C)SA
D)FCS
Q6) The sequence 10101011,which indicates the actual start of the frame and enables the receiver to locate the first bit of the rest of the frame,is the ______.
A)FCS
B)SFD
C)DA
D)SA
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Chapter 14: Wireless Lans
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Q1) __________ is the primary service used by stations to exchange MAC frames when the frame must traverse the DS to get from a station in one BSS to a station in another BSS.
Q2) Infrared LANs are an economic alternative to spread spectrum LANs. A)True
B)False
Q3) A __________ is any device that contains an IEEE 802.11 conformant MAC and physical layer.
Q4) When all the stations in the BSS are mobile stations,with no connection to other BSSs,the BSS is called an ___________.
Q5) One advantage of wireless LAN use is that any transmission frequency can be used as long as it does not interfere with other nearby applications. A)True
B)False
Q6) The _________ service enables transfer of data between a station on an IEEE 802.11 LAN and a station on an integrated IEEE 802.x LAN.
Q7) The most significant set of standards defining WLANs are those defined by the Q8) For privacy ,802.11 defined the __________ algorithm.
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Chapter 15: Wan Technology and Protocol
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Q1) In a __________ network ,data entering the network from a station are routed to the destination by being switched from node to node.
A)packet switching
B)simple switching
C)switched communication
D)all of the above
Q2) Basic packet switching technology has recently been developed to replace circuit switching.
A)True
B)False
Q3) ________ are the switching centers in the network.
A)Subscribers
B)Subscriber line
C)Exchanges
D)Trunks
Q4) Another well-known application of circuit switching is the _________ used to interconnect telephones within a building or office.
Q5) __________ allows users to plan for network expansion and modifications arising as their needs change.
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Chapter 16: Wan Services
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Q1) In ATM,the basic transmission unit is the ________.
A)frame
B)cell
C)packet
D)segment
Q2) The _________ field indicates the type of information in the information field.
A)PT
B)VPI
C)GFC
D)CRC
Q3) ____________ directs data from one network node to the next based on short path labels rather than longer IP network addresses.
Q4) Congestion avoidance procedures are employed when congestion starts to build up and increasing queue lengths are detected.
A)True
B)False
Q5) Frame Relay is a more streamlined communication process than X.25.
A)True
B)False
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Chapter 17: Wireless Lans
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Q1) The ____________ is a universal,open standard developed by the WAP Forum to provide mobile users to access telephony and information services including the Internet and the Web.
Q2) The two types of channels that are available between the mobile unit and the base station are control and ___________.
Q3) 4G networks,devices,and services are expected to evolve slowly over the next decade.
A)True
B)False
Q4) When using cellular networks,__________.
A)a single base station can serve multiple cells
B)adjacent cells must use the same frequencies
C)adjacent cells are assigned different frequencies
D)non-adjacent cells are assigned different frequencies
Q5) The most common type of communications satellite today is the _________,first proposed by the science-fiction author Arthur C.Clarke in 1945.
Q6) Transmissions from the satellite to the earth station are __________.
Q7) A transmission from an earth station to the satellite is referred to as __________.
Page 19
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Chapter 18: Computer and Network Security Threats
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Q1) Which of the following is not an example of intrusion:
A)guessing and cracking passwords
B)running a packet sniffer on a workstation to capture user names and passwords
C)using an unattended,logged-in workstation without permission
D)all of the above are examples of intrusion
Q2) Most viruses carry out their work in a manner that is specific to a particular operating system.
A)True
B)False
Q3) Also known as a zombie or drone,a __________ is a program that secretly takes over another Internet-attached computer and then uses that computer to launch attacks that are difficult to trace to the creator.
Q4) __________ involve some modification of the data stream or the creation of a false stream and can be subdivided into four categories: replay, masquerade,modification of messages,and denial of service.
Q5) Repudiation refers to a user either denying sending data or a user denying receiving or possessing the data.
A)True
B)False
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Chapter 19: Computer and Network Security Techniques
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Q1) ____________ integrates with the operating system of a host computer and monitors program behavior in real time for malicious actions and then blocks potentially malicious actions before they have a chance to affect the system.
Q2) A _________ is a hardware or software entity inserted between a system or network to be protected and the Internet or other outside access network to control traffic in both directions to enforce a security policy.
Q3) A key logical component of an IDS is:
A)sensors
B)analyzers
C)user interface
D)all of the above
Q4) An uncontrolled port allows the exchange of PDUs between a supplicant and other systems on the LAN only if the current state of the supplicant authorizes such an exchange.
A)True
B)False
Q5) IPSec provides authentication,encryption,and key exchange functions.
A)True
B)False
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