Download Introduction to Networks (Version 6.0) - ITN Final Exam question and answers graded A+ 202 and more Exams Computer Science in PDF only on Docsity!
Final exam for computer networking 2025 exam
SCORE A+
A concurrent server uses threads of control to handle requests from multiple clients at the same time. True Which Internet stream service operates similar to a telephone call? server-oriented Connection-oriented Communication.The Internet stream service is connection-oriented, which means the service operates analogous to a telephone call: before they can communicate, two applications must request that a connection be created. Which of the following is not a characteristics of client software? Client software is starts automatically when a system boots. What are the two basic Internet communication paradigms (models)? Stream and Message Peer-to-peer service is implemented as one way to avoid creating a central bottleneck in network connections. Peer-to-peer architecture is defined as data distributed equally among a set a server and each client request is sent to the appropriate server. Each service available in the Internet is assigned a unique 16-bit identifier know as an IP Address.
False Which of the following is not a typical characteristics of server software? Servers do not require powerful computer hardware The stream transport model in the Internet refers to a sequence of bytes flowing from one application program to another. A packet using the message paradigm is limited to 64 Kbytes per message. True Which two Internet protocols allow a client to identify a server? IP address and port number The purpose of Name Resolution is to translate a domain name into an address. Select the four major HTTP request types. HEAD, PUT, GET, and POST The HTTP request type ______ is used to request status information only
POST
Medium Earth Orbit (MEO) Satellites provide communication at the North and South Poles. True High frequency radio waves follow the earth's curvature and can be blocked by uneven terrain. False Which of the following is a media that does not use light energy to carry information? radio waves Optical fiber has several properties that make it more desirable than copper wiring. These advantages include all except lower overall cost. Random electromagnetic radiation is called ______________. shielding noise Two broad classes are used to distinguished between physical media (such as copper wiring or optical fibers) that provide a specific path and radio transmissions that travel in all directions through space. These terms are _______________________ and ______________________. guided, unguided
Geostationary Earth Orbit (GEO) Satellites remains in exactly the same location over the earth's surface at all times when positioned above the equator. True Low Earth Orbit Satellites are defined as orbiting up to 2000 Kilometers, having a short propagation delay, and easy to track. False The most widely used form of light energy medium is fiber optics. True Cladding is bonded to the optical fiber to help prevent breakage when the fiber is twisted or bent. False Behavior of LightA substance called cladding is bonded to the fiber to form a boundary; as light travel along, light is reflected off the boundary. Broadband technologies include all the following except dialup telephone connections. The system designed to provide steady bit flow for applications that use voice or video is known as _______________ transmission. isochronous
A typical residential subscriber receives much more information than the subscriber sends. Internet access technologies are designed to transfer more data in one direction than the other. True Access technologies handle the last mile problem, where the last mile is defined as the connections to the typical residential subscriber or small business. True Asynchronous transmission can occur at any time with an arbitrary delay between the transmission of two data items. True Convert 0x0010 to decimal 16 Convert the decimal 254 to binary 1111 1110 Convert the hexadecimal 246 to binary 0010 0100 0110 Convert 0x1FC7 to binary
Convert the decimal 224 to binary 1110 0000 Convert 0x081A to binary 1000 0001 1010 Convert binary 1110 1010 to hexadecimal EA Convert the decimal 192 to binary 1100 0000 Each character in hexadecimal represents 8 bits in binary. True False Convert 0x0100 to decimal 256
Communication between two parties on a circuit switched network is affected by communication between other parties sharing a common medium. False In a packet-switched network each frame corresponds to a packet. Match the term with its definition. marks the beginning of a frame
- SOH contains information used to process the frame
- header contains the message being sent
- payload marks the end of a frame
- EOT What three general properties define a circuit switched paradigm? Separate steps for circuit creation, use, and termination Performance equivalent to an isolated physical path Point-to-Point communication The purpose of a repeater is to __________________. amplify a signal
An Ethernet cable with a designation of 100BaseT used which type of cable? Twisted Pair The Ethernet frame format has remained unchanged since the first standard, however, the cables and the wiring scheme have changed dramatically. True A repeater is an analog device used to broadcast messages across a Wide Area Network (WAN). False Bridges do not blindly forward a copy of each frame from one LAN to another. Instead, bridges use the destination MAC address and do not forward the frame to a LAN segment unless necessary. A layer 2 switch is an electronic device that resembles a hub but simulates a bridged network that has only one computer per LAN segment. True The term frame format defines the way a packet is organization but it does not include details to the size or meaning of individual fields. False The term frame format refers to the way a packet is organized, including details such as the size and meaning of individual fields.
Spread spectrum transmission use multiple frequencies to send data. True A Virtual Local Area Network (VLAN) switch allows the switch to be reconfigured to emulate multiple, independent switches. True An example of attenuation is the weaken of a radio signal as it travels over long distances. True The three building blocks of a wireless LAN are the _________________ , ___________________, and ______________. hosts switch or router access point The concept of a ___________ is allow a switch to be configured to emulate multiple, independent switches. VLAN switch Select the four types of personal area network (PAN) technologies InfraRed
Bluetooth ZigBee ISM wireless The purpose of fiber modem extensions is to accept packets over the Ethernet interface and send over optical fiber, and accept packets off the optical fiber and send them over the Ethernet interface. True The IEEE 802.1Q standard allows multiple VLAN switches to be interconnected and to operate like a giant VLAN switch. A repeater is an analog device used to broadcast messages across a Wide Area Network (WAN) False A Virtual Local Area Network (VLAN) switch allows a manager to configure a switch to emulate multiple, independent switches. True What is the purpose of a bridge? It connects two LAN segments Bridges do not blindly forward a copy of each frame from one LAN to another. Instead, bridges
For a WAN to operate correctly, each switch must have a forwarding table, and must forward packets. Furthermore, values in the forwarding table must guarantee _______________ and
Optimal Routes Universal Communication Match the network classification with the description spans a large metropolitan area or city MAN spans a region near an individual PAN spans multiple cities or countries WAN spans a floor or a building LAN The goal of a wide area network is to allow as many computers as possible to send packets simultaneously. True Which type of routing protocol requires the packet switches to send messages periodically across the network carrying the status of a link between the two packet switches? Link-State Routing We use the term intranet to refer to an network that is owned by a private organization and designed for global use.
False What is the term used to describe an end system that connects to the Internet and runs applications? host TCP/IP is the most important internetworking protocol suite and has been used on the Internet for decades. True A communication system that allows arbitrary pairs of computers to communicate is called universal service. True Why do organizations seldom use a single router to connect all of its network? Multiple routers improve reliability and avoids a single point of failure. An organization buys multiple inexpensive routers and upgrade them independently when their capacity is exceeded.
