Routing table to a switch d Twin computers The following devicets) are used on a network a Aswitch b Repeaters Bridges d. All of the above 8 This layer is the last layer that wraps up or encapsulate the internet message and get it ready for the network a. Application layer b. Network layer c Data-Link Layer d. Physical Layer 9. Which TC P/IP protocol stack is responsible for guaranteed delivering of internet messages to the appropriate applications? a. Transport Layer b. Network layer c. Data-link layer d. Physical Layer 10.The OSI model has how many layers. a. 7 layers b. 5 layers c. 3 layers d. 4 layers 11. This protocol is used in real time applications because it does not establish connections between the end systems. a. UDP b. TCP c. Https d. SMTP 12.IETF specification of interface standard includes the physical composition and a. USB composition b. Electrical composition c. Analog compositionn d. Data transfer composition 13. Data transfer composition of a hardware interface st following except rface standard include the a. Asynchronous transmission C. Isochronous transmission d. Multiplexed transmission e underlying physical infrastructure controlling the internet is 14. Th a. Satellite dish b. High Frequency lines c. Network operating system d. Network cloud 15.Fiber-optics signal is made up of a. Radio wave b. Electronic voltage c. Light signal d. Solid particles 1. Employs dedicated signal path between two communications medium. a. Packet switched networks b. Circuit switched networks c. Packet transmissions d. Voice over IP networks 17.The underlying physical interconnection in an internet network is carried by a set of a. Network modems b. Network software c. Network routers d. Network switches 1.is the opposite of attenuation a. Frequency sampling b. Amplification c. d. modulation tary 28,201 Twist ratico ty of a router to adjust itself in case of a network failure is calted a. Distributed routing b. Adaptive routing c. Static routing d. All of the above 20. The bandwidth of a cable refers to a. Data transfer capacity of the cable b. Cost of the cable c. Transmission distance of the cable d. Type of material 21. The name Twisted pair comes as a result of (Why do we call it twisted pair?) a. It is made up of color twist b. Each copper is twisted against its metallic shield c. The copper wires is twisted against each other d. The twist increases external influences 22.Errors are detected in a frame by a... a. Error detection code b. Header file c. Special application in the server d. none of the above 23. This concept results in the ability of routers to keep, interact and continually update its routing information. a. Networked routing b. Routing table c. Distributed routing d. Static routing 24.Metropolitan Area Network covers a. The globe b. Set of buildings in a city c. A single unit 4 d. The internet Vebruary 28, 2019 25.Fiber-optics cable is preferred to other network cables because a. It has high immunity to noise and higher transmission capabilities b. It is cheaper c. It uses light photons d. It is unidirectional 26.A strategy or technique implemented on a network to reduce the packet's number of hops is called a. Cost b. Hop count c. Weighted systems d. Flooding An unshielded twisted cable can be used in an area of less electromagnetic influences. 27. a. True b. False c. Undecided d. Totally false 28.Dijkstra algorithm is otherwise known as a. Fastest algorithm b. Delay algorithm c. Highest cost algorithm d. Least cost algorithm 29.Fiber-optics cable is immune to electromagnetic interference because a. It transmits non conducting light photons on the surface of a Glass Fiber b. The fiber glass does not exert electromagnetic influence on itself c. The light photons is totally internally reflected d. None of the above 30.Carrier sense multiple access with collision detection is usd to. a. Allow one user speak at a time b. Allow multiple users speak at the same time c. Allow switches to interoperate d. Allo w Ethernet frames to travel along a distance 31. Spanning tree protocol is used to y an, zo a. Increase transmission speed b. Prevents loop c. Increase switch bandwidth d. Reduce attenuation 32.The protocol that enables transmission to only one wor prevents collision is kstation at a time or a. Http b. UDP c. CSMA/CD d. TCP transmission refers to the transfer of one block of data at a time a. Broadband transmission b. Synchronous data transmission c. Asynchronous data transmission d. All of the above 34. What is meant by Line of sight transmission of a satellite dish a. Communication antennas must be close to each other b. Communication antenna must have the least Propagation Delay c. Communication antennas must be in sight of each other d. Communication antenna must be in sight of the foot of the next antenna 35.Asynchronous transmission refers to transmission of..... at a time a. Sequence of control packets b. One block of multiple characters c. A single character d. The permission to remove a network infrastructure 36.RS-232 is a type of a. WiMax connection b. Interface standard c. Wi-Fi connection d. Microwave transmission 37.Daisy-chaining is a property of the connect to each other that allows multiple a. USB b. Hard disk c. Switch d. Ethernet cable 38.An odd parity check would...bit o the following bits sequence 10001110 is? a. add b. multiply c. minus d. divide 39.One of these is not an error detection technique a. Parity check b. Cyclic Redundancy check c. Checksum d. Logical connection 40.How does echo noise occur a. A sud b. It occurs as a reflection of transmitted signal c. It occurs as a sudden pop sound as a result of temperature d. All of the above den spike or non continuous noise that interfere with a signal a. A network of few computers spanning a small geographical area b. A network of not more than 20 network devices c. A network that spans buildings in a city d. A small network covering a whole campus 41.The following best describe a local area network 42.One of these is Not considered to be disadvantage for a local area network a. The operating system and network hardware that run on the network are expensive b. Software and Hardware may not be able to interoperate c. Management and control of a local area network requires Hours of dedication and service ations February 28, 2019 Real time applications d. Mail transfer 49.Full-Duplex transmission means a. Transmission and reception of signals can occur the same time b. Transmi c. Workstations can only transmit signals d. Workstations can only receive signals ssions and reception of signals occurs at different times 50 Half-Duplex transmission means a. Transmission and reception of signals can occur the same time D. Transmissions and reception of signals occurs at different times c. Workstations can only transmit signals d. Workstations can only receive signals a. Transmission and reception of signals can occur the same time b. Transmissions and reception of signals occurs at different times c. Workstations can only transmit signals d. Workstations can only receive signals 51.Simplex transmission means