B. Given a block of IP addresses represented by 192.168.200.0/24, you are being asked to create onesubnetwork of 120 hosts, 2nd of 63 host, and third of 16 hosts. Based on concepts of subnetting,write the missing information in following table:120 Hosts SubnetSubnet Mask63 Hosts Subnet16 Hosts SubnetSubnet MaskSubnet MaskSubnet AddressSubnet AddressSubnet Address1 Usable Host IP1st Usable Host IP1st Usable Host IPBroadcastBroadcastBroadcastaddressaddressaddress

Introduction: Given IP Address: 192.168.200.0/24 /24 indicates that there are 24 network bits and 8…

B. Given a block of IP addresses represented by 192.168.200.0/24, you are being asked to create one subnetwork of 120 hosts, 2nd of 63 host, and third of 16 hosts. Based on concepts of subnetting, write the missing information in following table: 120 Hosts Subnet 63 Hosts Subnet 16 Hosts Subnet Subnet Mask Subnet Mask Subnet Mask Subnet Address Subnet Address Subnet Address 1" Usable Host IP 1st Usable Host IP 1st Usable Host IP Broadcast Broadcast Broadcast address address address

B. Given a block of IP addresses represented by 192.168.200.0/24, you are being asked to create one subnetwork of 120 hosts, 2nd of 63 host, and third of 16 hosts. Based on concepts of subnetting, write the missing information in following table: 120 Hosts Subnet 63 Hosts Subnet 16 Hosts Subnet Subnet Mask Subnet Mask Subnet Mask Subnet Address Subnet Address Subnet Address 1" Usable Host IP 1st Usable Host IP 1st Usable Host IP Broadcast Broadcast Broadcast address address address

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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1) Three-way handshake to establish connection (Host A sends a SYN) to the host B. Then Host B returns a and Host A sends an---- 2) In non-persistent HTTP, the file transmission Response time= 3) A class B network number uses hits for the network number and -bits for host numbers. 4) When host makes DNS query, in first step the query is sent to its 5) The values assigned to the first byte of class A network numbers fall within the range -------
2. The following illustration shows a transmission from Host A to Host B using Network Address Translation (NAT). Host A is located inside a Local Area Network (LAN) with an IP address of 192.168.1.2. The LAN is connected to the Wide Area Network (WAN), i.e. the Internet, through a router R1 that conducts NAT. R1 has two interfaces with an internal LAN IP address (192.168.1.1) and and external WAN IP address (127.45.10.35). Host B is located outside the LAN and is a well-known server, e.g., Google's server. Host B has an IP address of 130.160.23.45. Port numbers for the application components running at both hosts are provided in the figure. For a single message M1 being sent from Host A to Host B, please fill in the blanks in the illustration below with the source IP address and Port number at Host A and at the Router R1. Any information not provided may be assumed, however, please state your assumption clearly. Host A Local Area Network (LAN) IP: 192.168.1.2 Port: 5252 Source IP…
14 The following figure shows a TCP transaction. Assume Host A always has data to send, and each packet has size 20 Bytes. Assume Host A has a sending window of 40 Bytes, that is, it can send two "in-flight” packets maximum. Answer the following questions. A. At the time marked "1", i.e., when the first packet times out, will Host A send any packet? if your answer is no, explain why not; if your answer is yes, how many packets will be sent, what are the sequence numbers of them? B. At the time marked "2", i.e., when the ACK of the 2nd packet is received by Host A, will Host A send any packet? if your answer is no, explain why not; if your answer is yes, how many packets will be sent, what are the sequence numbers of them? Host A Host B Seq=80, 20 bytes of data Seq=100, 20 bytes of data Xª 1 2- timeout
Question 9 Convert the following IPv4 address into dot decimal address, and determine which type of these addresses are. a) 10000001 00001011 00001011 11101111 b) 11000001 10000011 00011011 11111111 c) 11100111 11011011 10001011 01101111 Computer network Full explain this question
2. For each of the following, write the ONE correct answer. a) TCP/IP layers are Internet (I), Transport (T), Application (A), Physical (P), Network Interface (N). Which layer deals with modulation in WiFi networks? The layer whose header contains the source MAC address is Answer= Answer= b) The leftmost and rightmost bits in a byte are MSbit and LSbit respectively. For the 2 bytes 10000000 00000001, assume that the first byte is MSbyte and the second byte is LSByte. Assuming that bits are transmitted from left to right, write the transmission order that is bit big endian and byte little endian: Answer= c) Let TP=unshielded twisted pair, CC=coaxial cable, F=fiber, L=lasercommunication. Which of these media Uses a shield for limiting interference Achieves the highest bandwidth across long distances Answer= Answer= d) Of FDMA, CDMA, TDMA and SM (statistical multiplexing), which method is multiplexing primarily based on in LTE networks? Answer= e) Which particular form of FDM is used over…
4.02. Subnet addressing. Consider the three subnets below, each in the larger 128.119.160/24 network. The following questions are concerned with subnet addressing. Answer each question by selecting a matching answer. Each answer can be used to answer only one question. [Note: You can find more examples of problems similar to this here.] : A 128.119.160/24 48 hosts 21 hosts 50 hosts C A. V What is the maximum number of hosts possible in the larger 128.119.160/24 network? A. 256 B. 2**32 E. v How many bits are needed to be able to address all of the host in subnet C 64 A? D. 6 C. v Suppose that subnet A has a CIDRized subnet address range of 128.119.160.128/26 (hint: 128 is 1000 0000 in binary); Subnet B has an E. 96 CIDRied subnet address range of 128.119.160.64/26. We now want a valid CIDRized IP subnet address range for subnet C of the form 128.119/160.x/26. What is a valid value of x? F. 0
1. What is the difference between packet fragmentation (i.e., at network layer) and frame frag- mentation (i.e., at link layer) in terms of purpose? 2. Suppose that host A is connected to a router R1, R1 is connected to another router, R2, and R2 is connected to host B. Suppose that a TCP message that contains 800 bytes of data and 20 bytes of TCP header is passed to the IP function at host A for delivery to B. Show the Total length, DF, MF, and Fragment offset fields of the IP header in each packet transmitted over the three links. (Assume that link A-R1 can support a maximum frame size of 1024 bytes including a 14-byte frame header, link R1-R2 can support a maximum frame size of 512 bytes, including an 8-byte frame header, and link R2-B can support a maximum frame size of 432 bytes including a 12-byte frame header.) (*hint: the Fragment offset field is denominated by 8-bytes, not bytes) 3. What is the purpose of the path MTU discovery process (see textbook Figure 5-42) and why does…
Show your work for the following conversion. a) Convert the following block of IP addresses into CIDRized addresses: 11000110 10110111 10100000 00000000 to 11000110 10110111 10111111 11111111
Assume the maximum transmission unit (or MTU) of an IP packet on 100 Mbps Ethernet is set at 1500 bytes. Also, assume we are sending our file using IPv6 at the Network layer and UDP at the Transport layer. A typical IPv6 header consists of 40 bytes, a UDP header consists of 8 bytes. Answer the following three questions based on the information provided above. For all answers, enter a decimal integer value without formatting (no commas). 1. How many packets do we have to send in order to transfer a file of 24KB over 100 Mbps Ethernet? packets 2. How many bytes do we have to send at the network layer in order to transfer the above file entirely? bytes 3. How many bytes do we have to send at the data link layer in order to transfer the above file entirely? Assume that the Ethernet header is 14 bytes and the frame checksum is 4 bytes. bytes
Refer to the network figure above, showing two Ethernet Subnets connected through an IP Router, answer the following question 1-5. The devices in each subnet are connected locally to each other through layer two intermediate devices such as Ethernet switch and ethernet hub. For each device in the subnets, both its Internet Protocol (IP )address and its MAC address (also called the Physical address or the Ethernet address are shown. The subnet mask used by all devices is 255.255.255.240 (which is the same as the prefix length “/28”). 1. If Client #1 wants to send a broadcast packet to all the devices on the left subnet (containing client #1, client #2, client #3) what destination IP address should be used? (Mention in both binary and decimal format.) 2. What is the first and last assignable IP address for the left subnet above (containing client #1 and #3)? (Mention in both binary and decimal format.)
13. The following figures plot the timeline for sending TCP segments by host A and TCP ACKS by host B, where “seq #” is the value of the sequence number in the TCP header, and "ACK #” is the value of the acknowledge number in the TCP header. Assume that every segment always includes 500 bytes of data, excluding the TCP header. A seg #: 1000 seq #: 1500 seq #: 2000 seq #: 2500 (1) B ACK #: a ACK #: b ACK #: c ACK #: d A seq #: 1000 seq #: 1500 seq #: 2000 seq #: 2500 (2) B ACK #: r ACK #: s TACK 1) In Figure (1), the second ACK sent out by host B gets lost in the network. a) What are the acknowledge numbers a, b, c, and d? b) Will sender A think the segment with seq#=1500 was lost because it never receives the acknowledgement from B containing ACK# = b? 2) In Figure (2), the second TCP segment from host A to host B gets delayed in the network but later arrives at B. What should be the value for the ACK number r, s and t?
1) A /24 address has two subnets. What is the subnet mask in dotted notation. 2) A /24 address has four subnets. What is the subnet mask in dotted notation. 3) A /20 address has 4 subnets. What is the subnet mask in dotted notation.