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- Path: p Words QUESTION 13 A Television broadcasting service uses a single coaxial cable with a bandwidth of 680 MHz to transmit multiple TV channels to their subscribers. Each TV channel is 6 MHz wide. How many channels can be carried if each channel has to be separated by a 1 MHz guard band? TTTArial 3 (12pt) T Word Path: p5. Suppose the distance between two ends of an Ethernet LAN with a transmission rate of R bps is d meters. Can you derive a formula to find the minimum frame size, L, needed for an Ethernet packet? Using this formula, what is the minimum required packet size for an Ethernet that spans 3 kilometers? Assume the speed of propagation is 1.8 × 108 m/s and R=10 Mbps.12) Which of the following statements is NOT true regarding the ring topology in computer networks? A. In a ring topology, each node connects to exactly two other nodes, forming a single continuous pathway for signals through each node. B. Ring topology is less expensive to install and expand than a star topology. C. Data packets in a ring topology travel in only one direction from one node to the next until they reach their destination. D. A break in the cable in a ring topology does not affect the network communication as the data can be transmitted in the opposite direction.
- 4. Which one does give layers in TCP/IP protocol stack? a. Application, Transport, Internet, Data Link, Physical b. Application, Transport, Network Access, Physical c. Application, Transport, Network, Data Link, Physical d. Application, Presentation, Session, Transport, Network, Data Link, Physical e. Application, Transport, Internet, Network Access, Physical 5. Which one is wrong to increase the receiving distance of a signal without problem? a. Increasing the peak amplitude of signal b. Increasing the frequency of the signal c. Using repater d. Using amplifier e. None age 1/2 5 1 ques 3 Have a successful exam..33. Which of the following statements about a broadcast domain are correct? A. Each port of a router is a broadcast domain. B. Each port of a hub is a broadcast domain. C. Each port of a switch is a broadcast domain. D. A broadcast domain is the flooding scope of a broadcast packet.1. The most common architectures for LANs are the 2. The information in an Ethernet network is exchanged in a packet format. The packet provides grouping of the information for transmission that includes ➖➖➖➖➖➖➖ ‒‒‒‒‒‒‒. 3. In a bus topology, all LAN data traffic is carried over a common--------- 4. The maximum Ethernet frame length is---- --command to enables the MAC addresses 5. In the command prompt, enter the information to be displayed. ---receives the message. Bob's mail 6. At Bob's mail server, the server side of server then places the message in Bob's mailbox.
- The 2G cellular system GSM 900 operates its 125 forward channels in the uplink frequency band 890.2-915 MHz and 125 reverse channels in the frequency band 935.2-960 MHz. Each channel has a bandwidth of 200 kHz. i. What is the bandwidth in the forward channels (uplink frequency band) and reverse channels (downlink frequency band)? ii. If each channel is subdivided into 16 time slots, what is the sub channel spacing? If each channel is shared by 16 users then compute the total number of users per cell?QUESTION 3 For ARP protocol which of the following statement(s) would be true? A. The ARP protocol is used to get the destination IP address from the destination MAC address. B. The ARP stands for Address Resolution Protocol. c. The ARP protocol is used to get the destination MAC address from the destination IP address. D. The ARP protocol works on the same network as well as connected networks. A and C A and B OA, C and D OB, C, and D1. The most common architectures for LANs are the 2. The information in an Ethernet network is exchanged in a packet format. The packet provides grouping of the information for transmission that includes -------, - 3. In a bus topology, all LAN data traffic is carried over a common- 4. The maximum Ethernet frame length is-- ----command to enables the MAC addresses 5. In the command prompt, enter the information to be displayed. ---receives the message. Bob's mail 6. At Bob's mail server, the server side of server then places the message in Bob's mailbox.
- In ICT infrastructure, which of the following statements is true about the use of User Datagram Protocol (UDP) in Voice over Internet Protocol (VoIP)? VoIP often uses UDP because it offers low latency and is better suited for real-time communication than TCP. VoIP can use both TCP and UDP interchangeably, depending on the type of communication and the devices involved. UDP is used in VoIP only when the network has low congestion, otherwise TCP is used to ensure data reliability. VoIP always uses TCP to ensure that voice data is transmitted reliably. UDP is not used in VoIP because it does not support real-time communication.Networking Assignment 1) Flow control is provided by TCP and UDP. True False 2) Which class of routing algorithms is likely to send more messages over the network? Link State Distance Vector 3)A switch's interface has a transmission rate of 70 Mbps. How long will the switch take to transmit a full Ethernet frame of 1526 bytes? 174 microseconds 200 microseconds 45 microseconds 9 milliseconds 4) What is the primary responsibility of the physical layer? To transmit individual bits across a medium To transmit data between two directly connected network devices To transmit data between two hosts across a network of many interconnected devices To provide end-to-end services such as reliable delivery, flow control, and persistent connection To provide a service to the end user such as delivering a web page or transferring a file 5) Suppose users share a 20 Mbps link. Also suppose each user transmits continuously at 2 Mbps when transmitting, but each user…1- What is meant by subnetting and subnet mask? 2- Draw a diagram illustrating the bit organization of an IP address used in a subnet with the following prefix: 198.51.100.0/24. What is the subnet mask of this network?