CompTIA Network+® Study Guide

6.6. Review Questions

1. The OSI has seven layers, which layer does SMTP work at?

   1. Network

   2. Transport

   3. Session

   4. Application

2. You need to have secure communications using HTTPS. What port number is used by default?

   1. 69

   2. 23

   3. 21

   4. 443

3. You want to implement a mechanism that automates the IP configuration, including IP address, subnet mask, default gateway, and DNS information. Which protocol will you use to accomplish this?

   1. SMTP

   2. SNMP

   3. DHCP

   4. ARP

4. What protocol is used to find the hardware address of a local device?

   1. RAAP

   2. ARP

   3. IP

   4. ICMP

   5. BootP

5. You need to login to a Unix server across a network that is not secure. Which of the following protocols will allow you to remotely administrator this server securely?

   1. Telnet

   2. SSH

   3. SFTP

   4. HTTP

6. If you can ping by IP address but not by hostname, or FQDN, which ...