26 The _field determines the lifetime of IPV6 datagram? :| Choose one a. Type of traffic answer. b. Hop limit O c. Next Header d. TTL 27 After configuring PAT, Avamax found that some web servers are not reachable from the outside network. Which of the following is NOT a possible reason. Choose one a. Domain name service does not include NAT information answer. b. A tunnel has been configured between the client and the server network c. Well known port numbers are used for address translation d. Firewall is blocking the port required for address translation 28 Dual-stack approach refers to Choose one a. implementing IPV6 with dual-stacks. answer. b. implementing IPV4 and IPV6 support. c. implementing a MAC address with dual-stacks. d. implementing IPV6 with dual-stacks.

26 The _field determines the lifetime of IPV6 datagram? :| Choose one a. Type of traffic answer. b. Hop limit O c. Next Header d. TTL 27 After configuring PAT, Avamax found that some web servers are not reachable from the outside network. Which of the following is NOT a possible reason. Choose one a. Domain name service does not include NAT information answer. b. A tunnel has been configured between the client and the server network c. Well known port numbers are used for address translation d. Firewall is blocking the port required for address translation 28 Dual-stack approach refers to Choose one a. implementing IPV6 with dual-stacks. answer. b. implementing IPV4 and IPV6 support. c. implementing a MAC address with dual-stacks. d. implementing IPV6 with dual-stacks.

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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P7. Suppose within your Web browser you click on a link to obtain a Web page. The IP address for the associated URL is not cached in your local host, so a DNS lookup is necessary to obtain the IP address. Suppose that n DNS servers are visited before your host receives the IP address from DNS; the successive visits incur an RTT of RTT 1 , . . . , RTT n RTT1, . . . , RTTn. Further suppose that the Web page associated with the link contains exactly one object, consisting of a small amount of HTML text. Let RTT 0 RTT0 denote the RTT between the local host and the server containing the object. Assuming zero transmission time of the object, how much time elapses from when the client clicks on the link until the client receives the object? P8. Referring to Problem P7, suppose the HTML file references eight very small objects on the same server. Neglecting transmission times, how much time elapses with Non-persistent HTTP with no parallel TCP connections? Non-persistent HTTP with…
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