Which of the following statements are true about Private IPv4 addresses? (Select all that apply.) a. Network Address Translation creates a temporary mapping of public IPv4 addresses to private IP addresses as they are requested. b. Properly configured NAT is required to access the Internet from a computer assigned the IPv4 address 172.32.17.17 c. The use of classless IPv4 routing, Private IP usage inside organizations, and NAT have slowed the need to migrate to IPv6. Od. IANA doesn't manage the assignment of private IPv4 networks to organizations. Show Transcribed Text 3 Which of the following describe Secure Shell? O a. Is not compatible with Secure File Transfer Protocol. O b. Uses the DSA symmetric encryption algorithm to encrypt traffic between endpoints. c. Initial authentication is in plain-text. O d. Can be used to remotely manage devices on remote networks.

Which of the following statements are true about Private IPv4 addresses? (Select all that apply.) a. Network Address Translation creates a temporary mapping of public IPv4 addresses to private IP addresses as they are requested. b. Properly configured NAT is required to access the Internet from a computer assigned the IPv4 address 172.32.17.17 c. The use of classless IPv4 routing, Private IP usage inside organizations, and NAT have slowed the need to migrate to IPv6. Od. IANA doesn't manage the assignment of private IPv4 networks to organizations. Show Transcribed Text 3 Which of the following describe Secure Shell? O a. Is not compatible with Secure File Transfer Protocol. O b. Uses the DSA symmetric encryption algorithm to encrypt traffic between endpoints. c. Initial authentication is in plain-text. O d. Can be used to remotely manage devices on remote networks.

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

See similar textbooks

Similar questions

182. Refer to the exhibit. Statements A, B, C, and D of ACL 10 have been entered in the shown order and applied to interface E0 inbound, to prevent all hosts (except those whose addresses are the first and last IP of subnet 172.21.1.128/28) from accessing the network. But as is, the ACL does not restrict anyone from the network. How can the ACL statements be re-arranged so that the system works as intended?
(please type answer fast.)
Please solve it correctly and please provide explanation of your answers. Please answer parts g, h and i. A PC and a Web Server are communicating over a TCP connection. The PC had started the three way handshake with the initial sequence number of 3069 . The Web Server's initial sequence number is 4830 . The window size of the PC is 815 bytes and the window size of the Web Server is 463 bytes. Using the third TCP handshake ack segment the PC sends the http request of the size 396 bytes to the Web Server. Then the Web Server answers with 3 segments containing the requested data. The first segment size is 42 bytes and the second segment size is 276 bytes and the third segment size is 146 bytes respectively. The PC receives all three segments within the timer. But unfortunately the second segment was corrupted. So the PC immediately sends an acknowledgement segment. Assume that the PC uses Selective Repeat/Reject ARQ. g) The second segment from webserver was corrupted. So the PC…
Select the FALSE statements as shown below: i) Two distinct Web pages (e.g., www.uthm.edu.my/research.html and www.uthm.edu.my/students.html) can be sent over the same persistent connection. ii) With non-persistent connections between browser and origin server, it is possible for a single TCP segment to carry two distinct HTTP request messages. iii) The Date: header in the HTTP response message indicates when the object in the response was last modified. iv) HTTP response messages never have an empty message body. a) i, ii, and iii b) i, ii, and iv c) i, iii, and iv d) ii, iii, and iv
Fill in blank
Q1//Fill (5) the following blanks: 1. IPV4 are bits in length; this gives maximum of addresses. 2. The binary notation of 117.149.29.4 is 3. Network Address is 4. The subnet consists of two distinet components: and
Q.3 In network programming, structs are often used to represent protocol headers due to their ability to neatly encapsulate various types of data. (a) Define a struct named ProtocolHeader with the following fields to mimic a network protocol header: " version (unsigned integer, 4 bits) IHL (Internet Header Length, unsigned integer, 4 bits) typeOfService (unsigned integer, 8 bits) totalLength (unsigned integer, 16 bits) identification (unsigned integer, 16 bits) flags (unsigned integer, 3 bits) fragmentOffset (unsigned integer, 13 bits) timeToLive (unsigned integer, 8 bits) protocol (unsigned integer, 8 bits) headerChecksum (unsigned integer, 16 bits)
Refer to the following exhibit. R1(config)# aaa new-model R1 (config)# R1(config)# radius server Server-R R1(config-radius-server)# address ipv4 192.168.1.101 auth-port 1812 acct-port 1813 R1(config-radius-server) R1(config-radius-server) R1(config)# # key RADIUS-Pa55w0rd #exit Explain the reason(s) of specifying the ports being used for RADIUS and the key in the configuration. How could you include the RADIUS server as a AAA server?
An address in a block is given as 182.18.127.99. Find the number of addresses in the block, the Network address, and the Broadcast address, gateway address. You need to draw the diagram (PCs, switch, routers etc.) and show at least 3 PCs.
42, Which of the following statements about IPv6 are correct? A. IPv6 address 2001:0DB8:0000:0000:032A:0000:0000:2D70 can be abbreviated as 2001:DB8:0:0:32A::2D70. B. A link-local address (LLA) is a private IPv6 address that can be used only on the intranet. Because LLAS cannot be routed on the IPv6 public network, they cannot be used to directly access the public network. C. IPv6 addresses are classified into unicast, multicast, and broadcast addresses by IPv6 address prefix. D. IPv6 does not use ARP for address resolution. Instead, it uses ICMPv6 NS and NA packets to replace the address resolution function provided by ARP in IPv4.
Q) Refer to the exhibit. Router R1 is configured as shown. An administrative user attempts to use Telnet from router R2 to router R1 using the interface IP address 10.10.10.1. However, Telnet access is denied. Which option corrects this problem? R1 (config)# enable algorithm-type scrypt R1(config)# enable secret 9 tnhtc92DXBhelxjYk8LWJrPV36S2i4ntXrpb4RFmfqY R1(config)# username Admin algorithm-type scrypt secret Strong5rPa55w0rd R1(config)# aaa new-model R1(config)# aaa authentication login default local-case enable R2 telnet 10.10.10.1 Trying 10.10.10.1 Open ... User Access Verification Username: admin Password: StrongPa55w0rd Authentication failed [Connection to 10.10.10.1 closed by foreign host] R2# The R1 10.10.10.1 router interface must be enabled. The vty lines must be configured with the login authentication default command. The R1 10.10.10.1 router should be configured with a routing protocol. The administrative user should use the username Admin and password StrongPa55wOrd.
An Internet Service Provider (ISP) is granted a block of addresses starting with 150.80.0.0/22. The ISP needs to have 4 subblocks of addresses to use in its four subnets: one subblock of 200 addresses, one subblock of 330 addresses, one subblock of 100 addresses, and one subblock of 62 addresses. With the available information, a) Calculate the number of addresses in the block and determine the address mask, first address, and last address of the block. b) Determine the number of allocated addresses, subnet mask (n), address mask, first address, and last address for each of the subblocks. c) Calculate the number of unused addresses and provide its first address and last address. d) Illustrate the original block and the subblocks using two figures. The figures must contain the number of addresses, mask, first address, and last address.