Description : is the predominant form of Fast Ethernet, and runs over two pairs of category 5 or above cable. a. 100 BASE-T b. 100 BASE-TX c. 100 BASE-T4 d. 100 BASE-T2
Last Answer : b. 100 BASE-TX
Description : .......... is the predominant form of Fast Ethernet, and runs over two pairs of category 5 or above cable. A) 100 BASE-T B) 100 BASE-TX C) 100 BASE-T4
Last Answer : B) 100 BASE-TX
Description : IEEE 802.3ab defines Gigabit Ethernet transmission over unshielded twisted pair (UTP) category 5, 5e or 6 cabling known as .................... A) 1000 BASE-T B) 1000 BASE-SX C) 1000 BASE-LX D) 1000 BASE-CX
Last Answer : A) 1000 BASE-T
Description : is a collective term for a number of Ethernet Standards that carry traffic at the nominal rate of 1000 Mbits/s against the original Ethernet speed of 10 Mbit/s. A) Ethernet B) Fast Ethernet C) Gigabit Ethernet D) All of the above
Last Answer : B) Fast Ethernet
Description : In a fast Ethernet cabling, 100 Base-TX uses ........... cable and maximum segment size is ............ (A) twisted pair, 100 metres (B) twisted pair, 200 metres (C) fibre optics, 1000 metres (D) fibre optics, 2000 metres
Last Answer : (A) twisted pair, 100 metres
Description : 8............. was the first step in the evolution of Ethernet from a coaxial cable bus to hubmanaged, twisted pair network. A) Star LAN B) Ring LAN C) Mesh LAN D) All of the above
Last Answer : A) Star LAN
Description : IEEE 802.3ab defines Gigabit Ethernet transmission over unshielded twisted pair (UTP) category 5, 5e or 6 cabling known as .................... a. 1000 BASE-T b. 1000 BASE-SX c. 1000 BASE-LX d. 1000 BASE-CX
Last Answer : a. 1000 BASE-T
Description : ________ uses two pairsof twisted-pair cable. A) 100Base-TX B) 100Base-FX C) 100Base-T4 D) none of the above
Last Answer : 100Base-TX
Description : ________uses four pairsof voice-grade, or higher, twisted-pair cable. A) 100Base-TX B) 100Base-FX C) 100Base-T4 D) none of the above
Last Answer : 100Base-T4
Description : Give any two disadvantages of unshielded twisted pair cable.
Last Answer : Disadvantages of unshielded twisted pair cable. 1. Highly prone to crosstalk. 2. Unable to provide secured transmission of data.
Description : A simple cabling method, known as the..................topology allows about 30 computers on a maximum cable length of about 600 feet. A) Ring B) Bus C) Star D) Mesh
Last Answer : Bus
Description : Explain different modes of fibre optic cable.
Last Answer : Current technology supports two modes for propagating light along optical channels. 1. Multimode. 2. Single mode. Multimode can be implemented in two form: 1. Step ... All the beams arrive at the destination together and can be recombined with little distortion to the signal.
Description : Draw and explain fiber optic cable.
Last Answer : As shown in the figure, at the center is the glass core through which the light propagates. In multimode fibers, the core is typically 50 microns in diameter. In single mode fibers, the core is ... be fused to form a solid connection. A fusion splice is almost as good as a single drawn fiber.
Description : Draw and explain Co-axial cable.
Last Answer : Coaxial cable (also called as coax) has an inner central copper conductor surrounded by an insulating sheath, which in turn is enclosed in the metal mesh. This outer conductor (shield) acts not ... building where a number of twists and turns are required. 4. limited to size of network.
Description : Which of the following are Gigabit Ethernets? A) 1000 BASE-SX B) 1000 BASE-LX C) 1000 BASE-CX D) All of the above
Last Answer : D) All of the above
Description : A WAN typically spans a set of countries that have data ratesless than................ Mbps. A) 2 B) 1 C) 4 D) 100
Last Answer : B) 1
Description : How do you find the derivative for f(x) integral (1-t2)(1 plus t4) from sin2x to 1?
Last Answer : My suggestion is to multiply the binomials and do the integration directly, and then differentiate the result with respect to x. (If that doesn't work, feel free to send me a picture of the problem and I'll give it another try.)
Description : What digital carrier transmits a digital signal at 274.176 Mbps? A. T1 B. T3 C. T2 D. T4
Last Answer : D. T4
Description : A digital carrier facility used to transmit a DSI-formatted signal at 1.544. Mbps. A. T2 B. T1 C. T4 D. T3
Last Answer : B. T1
Description : Bamboo plant is growing in a fir forest then what will be the trophic level of it? (a) First trophic level (T1) (b) Second trophic level (T2) (c) Third trophic level (T3) (d) Fourth trophic level (T4)
Last Answer : a) First trophic level (T1)
Description : .................... is used to carry traffic of one protocol over network that does not support that protocol directly. A) Tunneling
Last Answer : A) Tunneling
Description : Which Ethernet system is restricted only to 100 m? A. 10 Base T B. 20 Base 2 C. 10 Base 5 D. 10 Base 1
Last Answer : A. 10 Base T
Description : A linear network has a current input 4cos(ω t + 20º)A and a voltage output 10 cos(ωt +110º) V. Determine the associated impedance.
Last Answer : Solution
Description : _________uses two fiber-optic cables. A) 100Base-TX B) 100Base-FX C) 100Base-T4 D) none of the above
Last Answer : 100Base-FX
Description : Which of the following TCP/IP protocols is used for transferring files form one machine to another. A) FTP B) SNMP C) SMTP D) RPC
Last Answer : A) FTP
Description : A series combination of resistance 100 ohm and capacitance 50µf is connected in series to a 230 V, 50HZ supply. Calculate (i) Capacitive reactance (ii) Current (iii) Power factor (iv) Power consumed
Last Answer : For RC series circuit
Description : Which of the communication modes support two way traffic but in only once direction of a time? A) Simplex B) Half-duplex C) Three - quarter's duplex D) Full duplex
Last Answer : B) Half-duplex
Description : It is desired to connect five computers that are joined at a single point called central node. i) Draw the setup. ii) Name the topology. iii) State two advantages and disadvantages of this topology.
Last Answer : i. Setup: ii. Name of topology: Star topology iii. Advantages of Star Topology 1) As compared to Bus topology it gives far much better performance, signals don't necessarily get ... as well number of nodes which can be added in such topology is depended on capacity of central device.
Description : Give two features of IPv6.
Last Answer : Two features of IPv6 are: An IPv6 address consists of 16 bytes (octets) It is 128 bits long. IPv6 specifies hexadecimal colon notation. Therefore, the address consists of 32 hexadecimal ... multicast. In an IPv6 address, the variable type prefix field defines the address type or purpose.
Description : State two advantages of Mesh topology.
Last Answer : Network Topology refers to layout of a network. Network topology specifically refers to the physical layout of the network especially the locations of the computers & how the cable is run ... to Point Connection: Point-to-point links make fault identification and fault isolation easy.
Description : Explain infrared communication. List any two disadvantages of infrared communication.
Last Answer : Infrared communication (IR) is an example of wireless communication. However, it is limited to very simple applications & suffers from several disadvantages, mainly very small bandwidth & distances ... areas require multiple emitter panels, which will increase the cost of the system.
Description : Define protocol. Give the name of any two protocols.
Last Answer : Define protocol: There are certain rules that must be followed to ensure proper communication & a set of such rules is known as protocol. Example: UDP, TCP/IP, SMTP, HTTP, SSL, FTP etc
Description : List any two disadvantages of bus topology.
Last Answer : Disadvantages of bus topology. 1. Heavy network traffic slows down the bus speed .In bus topology only one computer can transmit & other have to wait till their turn comes & there ... connectors will cause reflections & bring down the whole network causing all network activity to stop.
Description : Write in brief any two roles of network control devices in computer network.
Last Answer : Two roles of network control devices in computer: Role of repeater: Generates the original signal. Operates in the physical layer. Role of Bridges: Bridges utilize the address ... Role of Gateways: Gateways provide translation services between incompatible networks and works in all layers.
Description : Define LAN. Write any two disadvantages of LAN.
Last Answer : Definition of LAN: LAN is a network which is designed to operate over a small physical area such as an office, factory or a group of buildings. Disadvantages: 1. Power - a good LAN is required ... - if all computers running at once, can reduce speed for each. 6. Area covered is limited.
Description : Define Server. Give the name of any two types of Server.
Last Answer : Definition of server: The central computer which is more powerful than the clients & which allows the clients to access its software & database is called as the server. Types of server: 1. File server 2. Print Sever 3. Application server 4. Message server 5. Database server
Description : ..................mode is used whenever either end of a security association is gateway. A) Tunnel B) Encapsulating C) Transport D) Gateway
Last Answer : A) Tunnel
Description : In packet-filtering router, the following information can be external from the packet header. i) Source IP address ii) Destination IP address iii) TCP/UDP source port iv) ICMP message type v) TCP/UDP destination port A) i, ii, ... iv and v only C) ii, iii, iv and v only D) All i, ii, iii, iv and v
Last Answer : D) All i, ii, iii, iv and v
Description : State whether the following statement are true. i) An application-level gateway is often referred to as a proxy. ii) In proxy, a direct connection is established between the client and destination server. A) True, False B) False, True C) True, True D) False, False
Last Answer : A) True, False
Description : On the upper layer of SSL, a protocol for initial authentication and transfer of encryption keys, called the ………………… A) SSL handshake protocol B) SSL authentication protocol
Last Answer : A) SSL handshake protocol
Description : While initiating SSL session, the client code recognizes the SSL request and establishes a connection through TCP Part.................to the SSL code on the server. A) 420 B) 1032 C) 443 D) 322
Last Answer : C) 443
Description : At the lower layer of SSL, a protocol for transferring data using a variety of predefined cipher and authentication combinations called the ………………. A) SSL handshake protocol B) SSL authentication protocol C) SSL record protocol D) SSL cipher protocol
Last Answer : C) SSL record protocol
Description : The............................. Is a collection of protocols designed by Internet Engineering TaskForce(IETF) to provide security for a packet at the Network level. A) IPsec B) Netsec C) Packetsec D) Protocolsec
Last Answer : A) IPsec
Description : In........................mode, a common technique in packet-switched networks consists of wrapping a packet in a new one. A) Tunneling B) Encapsulation C) Both A and B D) None of the above
Last Answer : C) Both A and B
Description : The................is used to provide integrity check, authentication and encryption to IPdatagram. A) SSL B) ESP C) TSL D) PSL
Last Answer : B) ESP
Description : The primary goal of the......................protocol is to provide a private channel between communicating application, which ensures privacy of data authentication of the partners, and integrity. A) SSL B) ESP C) TSL D) PSL
Last Answer : A) SSL
Description : A ..................is an extension of an enterprise’s private intranet across a public Network such as the Internet across a public Network such as the Internet, creating a secure private connection. A) VNP B) VPN C) VSN D) VSPN
Last Answer : B) VPN
Description : State true or false. i) Socks are a standard for circuit level gateways. ii) The NAT is used for small number of the hosts in a private network. A) True, False B) False, True C) True, True D) False, False
Last Answer : C) True, True
Description : In.................. Mode, the authentication header is inserted immediately after the IP header. A) Tunnel B) Transport C) Authentication D) Both A and B