31 In Subnetting, the number of subnet bits the number of host bits- Choose one a. Increases, decreases answer. b. Increases, Increases O c. Decreases, decreases d. Decreases, increases 32 Which of the following is not a functionality of NAT? Choose one a. to forward traffic to destination of choice in a scenario when multiple path to the same destination is available answer. b. to load balance servers in a data center for redundancy/improved throughput c. as a security mechanism to shield servers from being directly exposed to external network d. to provide end to end security through address translation 33 Which statement is true about multihoming? I. Multiple Links, Multiple IP address II. Multiple Links, Single IP address III. Single Link, Multiple IP address IV. Multiple Interfaces, Single IP address per interface Choose one а. I, II, II answer. b. I, II, IV O c. III Od All statements

31 In Subnetting, the number of subnet bits the number of host bits- Choose one a. Increases, decreases answer. b. Increases, Increases O c. Decreases, decreases d. Decreases, increases 32 Which of the following is not a functionality of NAT? Choose one a. to forward traffic to destination of choice in a scenario when multiple path to the same destination is available answer. b. to load balance servers in a data center for redundancy/improved throughput c. as a security mechanism to shield servers from being directly exposed to external network d. to provide end to end security through address translation 33 Which statement is true about multihoming? I. Multiple Links, Multiple IP address II. Multiple Links, Single IP address III. Single Link, Multiple IP address IV. Multiple Interfaces, Single IP address per interface Choose one а. I, II, II answer. b. I, II, IV O c. III Od All statements

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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59- A network for a local office requires 4 LAN subnets as follows: · Subnet A - North Office with 31 hosts; · Subnet B - East Office with 15 hosts; and · Subnet C - South Office with 7 hosts. · Subnet D – West Office with 4 hosts. Given the IP Address 192.168.15.0 /24 and above described network requirements: 1. Design an optimal address scheme using Variable Length Subnet Mask (VLSM) method What will be the subnet mask of Subnet D? Select one: a. 255.255.255.192 b. 255.255.255.248 c. 255.255.192.192 d. 255.255.192.0 e. 255.255.128.255
42. Though there are practical reasons why we don't complicate our lives this way in the real world, from a theoretical perspective we could borrow non-consecutive bits for subnetting. So, when borrowing the first host bit, the second host bit and the last two host bits (counting from the left of the host bit field) from 172.1.0.0 can you determine the following: d. number of remaining host bits and then the number of useable hosts on a subnet?e. First useable host on the 2nd useable subnet?f. broadcast address for 2nd useable subnet?
3.4-11 Packet buffering in Go-Back-N. What are some reasons for discarding received-but- out-of-sequence packets at the receiver in GBN? Indicate one or more of the following statements that are correct.
Given 200.5.1.0/24. Create 10 subnets from the address space given. Answer the followingquestions:(i) How many bits are required to borrow in order to create 10 subnet? How many subnets are created? How many usable host addresses per subnet? Compute the decimal value of the new subnet mask.
Explain the differences between static and dynamic NAT with an example (PAT). B- Explain the significance of the internal router, DR, BDR, ABR, and ASBR in OSPF, as well as other terms that have been emphasized throughout this document. Which VTP mode allows us to make changes to, or delete, ylans? D- Differentiate between static and dynamic VLANs and the three VTP modes. E- Illustrates one way to set up the loopback interface.
58- A network for a local office requires 4 LAN subnets as follows: · Subnet A - North Office with 31 hosts; · Subnet B - East Office with 15 hosts; and · Subnet C - South Office with 7 hosts. · Subnet D – West Office with 4 hosts. Given the IP Address 192.168.15.0 /24 and above described network requirements: 1. Design an optimal address scheme using Variable Length Subnet Mask (VLSM) method What will be the network address of Subnet D? Select one: A. 192.168.15.232 B. 192.168.15.191 C. 192.168.15.112 D. 192.168.15.240
57- A network for a local office requires 4 LAN subnets as follows: · Subnet A - North Office with 31 hosts; · Subnet B - East Office with 15 hosts; and · Subnet C - South Office with 7 hosts. · Subnet D – West Office with 4 hosts. Given the IP Address 192.168.15.0 /24 and above described network requirements: 1. Design an optimal address scheme using Variable Length Subnet Mask (VLSM) method; What will be the range of usable (assignable) host addresses in Subnet C? Select one: A. 192.168.15.64 to 192.168.15.128 B. 192.168.15.97 to 192.168.15.110 C. 192.168.15.140 to 192.168.15.191 D. 192.168.15.128 to 192.168.15.139 E. 192.168.15.193 to 192.168.15.254
Can someone please explain to me ? ASAP??!! 7. Suppose Host A wants to send a large file to Host B. The path from Host A to Host B has three links, of rates R1 = 2 Mbps, R2 = 2 Mbps, and R3 = 4 Mbps. a. Assuming no other traffic in the network, what is the throughput for the file transfer? (5 Points) b. Suppose the file is 4 million bytes. Dividing the file size by the throughput, roughly how long will it take to transfer the file to Host B?
a.) Why have the standards makers chosen to specify that requests for Delivery Status Notifications are to be sent via SMTP, and not via a header in the mail heading? b.) What protocols can be applied when you want to transfer files between different platforms, such as UNIX systems and Windows servers? c.) In a Stop-and-Wait ARQ system, the bandwidth of the line is 2 Mbps, and 2 bit takes 30 ms to make a round trip. What is the bandwidth-delay product? If the system data frames are 10000 bits in length, what is the utilization percentage of the link?
“Daffodil Computers” has granted the block 15.13.180.0/8. The administrator wants to create 32subnets. Do not consider “0” as first subnet. 10I. Find the custom subnet maskII. Find the number of host addresses in each subnetIII. Find the first and last host addresses of subnet 20IV. Find the Network and Broadcast address of subnet 10.
1- What is the error message that occurs when the manager sends Set_Request to a read-only object? Also, list out any three error messages in SNMP v1. 2- What kind of network management protocols are available? What information can these protocols provide? Explain it with example. 3- Encode 32-bit INTEGER 12 in TLV format? What is the broadband communication system and how broadband network support quality of service (Qos)?
56. The difficulty with multicasting from a practical point of view is : a. memory allocation is difficult b. server must establish a seperate unicast session for each client c. the routers must support multicasting d. none of the mentioned