O'Reilly logo

CCNA Practice Questions (Exam 640-802), Third Edition by Jeremy CCIE No. 11727 Cioara

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

Answers and Explanations

  1. B. Even though it is a basic program, Telnet communicates using data that interacts with the application layer of an operating system. Answers A, C, and E are incorrect because these utilities (ping and traceroute) rely on ICMP, which only tests connectivity up to the network layer of the OSI model. Answer D is not a valid command.

  2. B. Communications software should be configured to communicate at 9600bps, with 8 data bits, 1 stop bit, no parity, and no flow control. This is commonly written 9600 8N1N. The other answers have settings that fail to match this.

  3. A. One of the major drawbacks to using Telnet to manage your Cisco devices is the fact that all communication is sent in clear text. If a malicious person captures ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required