CS 2204 Self-Quiz Unit 2

200 nodes are connected to a 1,500 metre length of coaxial cable. Using some protocol, each node can transmit 50 frames/second, where the average frame length is 2,000 bits. The transmission rate at each node is 100 Mbps (where 1 Mbps = 1,000,000 bps). What is the efficiency of this protocol?

Question 3 Consider the network shown below. 10:D4:E1:A8.97 FO 20:FF:3A:BC:01:4E АВ.22:АA:ВB:34:01 (1) (3) Switch Switch AA:10 F3:5C:01:04 N BB:89:34:E7:01:38 AB:20:FA:5B:02:14 (2) Switch FTP Server The table below shows the IP addresses of PC A, PC B, and Server C where Server C runs FTP services. Machine IP Address PC A 172.16.0.5 РС В 172.16.1.7 Server C 172.16.2.254 A user on PC A initiates a conversation with Server C to download a file using FTP protocol. The request use a local port number 1026 to establish a TCP session to the FTP server on Server C. Find the source and destination MAC addresses, the source and destination IP addresses of the request at points (1) and (2). Student Input Specification Source MAC: Destination MAC: Source IP address: Destination IP address: At point (1) At point (2) Source MAC: Destination MAC: Source IP address: Destination IP address: What are the source and destination port numbers in the TCP segments send from PC A to the server C?…

Consider an ethernet with length of the cable is 1800 meter and speed of the signal cable is 3 x 10^8 m/s, transmission time is 45 microsec, the (%) of time channel remains idle. (Upto 2 decimal place)  Correct answer get upvote. Incorrect get downvote

200 nodes are connected to a 1,500-meter length of coaxial cable. Using some protocol, each node can transmit 50 frames/second, where the average frame length is 2,000 bits. The transmission rate at each node is 100 Mbps (where 1 Mbps = 1,000,000 bps). What is the efficiency of this protocol?

Consider building a CSMA/CD network running at 10Mbps over a cable with no repeaters. If the signal speed in the cable is 106 km/sec and minimum frame size is 1500 bytes, then what is the cable length (km)?

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: p

A data channel at 5 Gbps is shared by two users. Assume that each user is transmitting at 2.5Gbps data rate continuously. Each user only transmits only 30% of the time.  (a) If circuit switching is used, how many users can be supported?  (b) If packet switching is used, would there be queuing delay to accommodate these two users? If a third identical user is added will there be a queuing delay?  (c) What is the probability that a user is sending data?  (d) Now assume three users under packet switching. Compute the probability that at any given time all three are transmitting at the same time. What is the fraction of time when the queue is growing?

Suppose we have a reservation system with 50 users, frame transmission time of 0.6 sec, v = 0.3.   (a) What is the effective frame transmission time?   (b) What is the efficiency/throughput if all stations are transmitting?   (c) What is the efficiency/throughput if a minislot can reserve up to 7 frames?

Discuss any two constraints of computer networks based on shared media with the aid of suitable illustrations.Are there any differences between half duplex traditional Ethernet, half duplex fast Ethernet, and half duplex gigabit Ethernet in terms of slot time and maximum network diameter? Explain!If a company has a single Fast Ethernet hub, it may divide its network into three Fast Ethernet hubs linked by one Fast Ethernet switch to form a Fast Ethernet LAN. Are split networks more efficient than their original counterparts? With the aid of a suitable diagram, explain.

Computer Network Question: Mr. Hadi sent an email using 01 Gbps network bandwidth which contained a message size of 2.5-KB (Kilobyte) . Mr. John is X km away from sender (where X is 149) who received email at speed of light travels at 2.4 × 108 m/s. You may need to calculate propagation time and the transmission time for the entire communication, and also discuss the dominant factor in this communication. Draw the figure by labelling all above mentioned values and add screen shot in your answer along with your solution.

can a network path have high bandwidth and high propagation delay? explain your answer

Suppose that our network is made of two computers. The computers are connected to eachother with three separate cables (links). The probability to fail for the first cable is 10%., for thesecond cable is 20% and for the third cable is 30%. What is our network reliability? Explain theresult and how it was calculated.

The three links in the following figure have the same transmission rate 1Gbps, same length 2 Km, and the same propagation speed 1. 8 106 m/s. The two router have processing delay equal to 10 microseconds and a queuing delay equal to 1 nanosecond. A packet of 1000 bit is to be transmitted from the client to the server. ... +Link 1+ Link 2 +Link 3+ Calculate the total delay of transmission of the packet.

1- TI carrier system is used: a. For PCM voice transmission b. For frequency modulated signals 2- Suppose an analogue audio signal is sampled 16,000 times per second, so we take sample every; a 250 µs b 150 us 5- 3- Which routing method best describes Bunder Gateway Procul? a hybrid of link-state and distance vector b-path-vector a) Queuing delay b) Transmission delay fidentiar LOVÉG 4- Which of the following authorities is responsible for assigning Autonomous System Numbers? c- IEEE d. JANA ISO b ITU-T 6- Which are QoS requirements for voice? a) Retransmit interval less than 10 ms. b) Jitter less than 10 ms c- 62.5 us d. 32.25 µs is the variation in delay for packets belonging to the same flow, 7- Label allocation schemes are used in MPLS. a) Unsolicited downstream b) Downstream on demand label distribution 8- In VLAN, what protocol is used for frame tagging? a) ISL b) VLANP e link-state. d- distance vector 10-Convert the telephone line into a high-speed digital link: a) ADSL b) HDSL…

Your answer includes number only, thousands should be separated by a : For example: 1,000 or 1,000,000 • Involved networking devices: • A geostationary statellite • Base 10Mbps a microwave link • Every minute a photo is taken and sends to the base. •S = 2.4 e8 m/sec • Distance (statellite, earth) = 36,000 km Size of the photo x for the microwave link continuously transmitting ? bits

Find correct answers referes to data and networking communication: 1. In ethernet frame, sending adapter encapsulates IP datagram (or other network layer protocol packet) and it uses preamble whick consists of :a. 4 bytes with pattern 10101010 followed by one byte with pattern 10101011.b. 7 bytes with pattern 1010111 followed by one byte with pattern 10101011.c. 2 bytes with pattern 10101010 followed by one byte with pattern 10101011.d. 7 bytes with pattern 10101011 followed by one byte wit pattern 10101010.e. 6 bytes with pattern 10101010 followed by one byte with pattern 10101011.f. 7 bytes with pattern 10101011 followed one byte with pattern 10101010.g. 7 bytes with pattern 10101010 followed by one byte with pattern 10101011. 2. The method of communication in which transaction takes place in both directions but only in one direction at a time is called?a. three answers are correctb. two answers are correctc. Multi-duplexd. Full-duplexe. four wire circuitf. simplexg. half-duplexh.…

Suppose the round-trip propagation delay for Ethernet is 46.4 µs. This yields a minimum packet size of 512 bits (464 bits corresponding to propagation delay + 48 bits of jam signal). (a) What happens to the minimum packet size if the delay time is held constant, and the signalling rate rises to 100 Mbps? (b) What are the drawbacks to so large a minimum packet size? (c) If compatibility were not an issue, how might the be written so as to permit a smaller minimum specifications packet size?

A network with bandwidth of 11 Mbps can pass only an average of 21,000 frames per minute with each frame carrying an average of 11,000 bits. What is the throughput of this network?

Consider the Ethernet networks shown in the below exhibit to answer the following questions. Fa0 Fal PC3 PCO Fa0/1 Fa0/0 Fa0/3 Etho/D/0 Fa0/2 s1 Fa0/1 R1 Fa0 Fa0/0 Fa0/1 PC1 R2 Fa0/1 Fa0/3 S2 Fa0 PC2 The network interface settings of POs are: Logical Address Physical Address PCO 192.168.2.2 0060.5032.9A15 PC1 192.168.2.3 o001.6363.6BAA PC2 192.168.3.2 O0EO.F9A1.0864 PC3 192.168.0.2 0001.0935.08C3 The network interface settings of routers are: Logical Address Physical Address R1-Fa0/0 192.168.0.1 0004.9A31.0501 R1-Fa0/1 192.168.1.1 0004.9A31.0502 R1-Etho/0/0 192.168.2.1 0060.2F70.0D9B R2-Fa0/0 192.168.1.2 0002.1641.6301 R2-Fa0/1 192.168.3.1 0002.1641.6302 Suppose that the switching table in the S1 contains the following contents: Fa0/1 Fa0/2 Fa0/3 Fa0/4 Open Fa0/5 Fa0/6 Fa0/7 Fa0/8 Open Open Open Open If a frame with source MAC address 001.6363.6BAA and destination MAC address 0060.5032.9A15 is received at the switch, at which port does the frame arrive? Which port(s) will the frame go…

A 100M-bit Ethernet has the following topology Hub The maximum length of each cable is 100m. The signal propagation speed is 2 x 105 km/sec and the hub introduces a delay of 1 usec. What is the minimum frame size for this Ethernet. DO NOT ASSUME THE STANDARD MINIMUM FRAME SIZE OF 512 BITS.

7700 Part 1 Build a simple network in packet tracer as shown in below diagram. 2 Y Fao Laptep-PT Teacher 1 Fa0 Fao PC-PT PC-PT Ali Farma Fa0/1 Fa0/S Fa0/2 Fa0/6 2950-24 Switcho Fa0/4 Fa0 Fa0 1FA0 PC-PT Muna PC-PT Saeed Laptop-PT Teacher 2 Use auto-cable connection to connect all network devices. Part 2 a) Allocate the following IP addresses to given Hosts. Ali: 10.10.0.1 10.10.10.2 10.10.10.3 10.10.10.4 Teacherl: 10.10.10.5 Teacher2: 10.10.10.6 Muna: Fatma: Saeed: waila ndov deta b) Check the connectivity among the devices c) Click Muna Pc and open terminal in desktop. d) What is Bits per second and Data bits? Answer:

17) A 1000BASE-SX Ethernet connection operates on a multimode fiber optic cable at a frequency of 353THz. What is the wavelength of the transmission channel? 850nm 85nm 8.5nm 18 ) In a telephone TDM system, a DS0 has a capacity of 64kbps and a T1 link rate is 1.544Mbps. How many simultaneous voice conversations can a T1 carry? 28 24 41 98 0.85nm

Problem Solving. Category5 cable, commonly referred to as CAT-5, is a twisted pair cable for data networks. Since 2001, the variant commonly in use is the Category5e specification (CAT-5e). The cable standard provides performance of up to 100MHz and is suitable for most varieties of Ethernet over twisted pair up to 1000BASE-T(Gigabit Ethernet). We would like to transmit information over a CAT-5 twisted pair cable at 500 Mbps. (a)What is the signal-to-noise ratio (SNR) of 30 dB adequate to transmit 500 Mbps?  (Convert the SNR of 30 dB to a numerical value then apply the Shannon Theorem). (b) What is the SNR required to just adequately transmit at 500 Mbps?  Express your answer in decibels for the SNR(that is, SNRdB)

CAT-6 twisted pair cable is a commonly used computer networks cable that provides afrequency bandwidth of up to 250 MHz. It is suitable for most varieties of Ethernet overtwisted pair up to 1000 BASE-T (Gigabit Ethernet). Determine whether a signal-to-noise ratio(SNR) of 20 dB is adequate to transmit 0.9 Gbps on this cable?

Explain, using words and a time diagram, why ethernet (IEE 802.3) has a minimum frame size. How would the minimum frame size change if the maximum network doubled?

Question 2 Trunks are typically implemented using: Coaxial Cable Optical Fiber Twisted Pair Wi-Fi Select the appropriate response Submit Response ✔