SAYLOR ACADEMY DIRECT CONTROL

SAYLOR ACADEMY DIRECT CONTROL

ECON 101 AL

QUESTIONS AND CORRECT

ANSWERS GRA DED

CS 402 DIRECT

CONTROL SAYLOR ACADEMY LA TEST

FINAL VERSION [BRAND NEW]

The protocols for email and web file access are described in which layer of the Internet protocol?

• Application
• Network
• Transport
• Session - ANSWER- a. Application

Which of the following OSI layers is responsible for routing IP packets?

• Network
• Presentation
• Session
• Transport - ANSWER- a. Network

Which of the following layers is a combination of the Application, Presentation, and Session layer in the TCP/IP reference model? - ANSWER- Application Layer 1 / 3

Which of the following layers is unique to the TCP/IP reference model? - ANSWER- a. Application <- I think (?)

[not: b. Internet]

• Transport
• VoIP

What type of WAN technology would you recommend for an organization that wants to lay optical fiber cable between two cities? - ANSWER- Sonet

Which of the following types of cable would most likely be found in a public network?

• Coaxial
• Optical fiber
• Twisted pair

d. Plenum cable - ANSWER- [not: a. Coaxial]

• Optical fiber
• Twisted pair <- I think?
• Plenum cable

How should you begin troubleshooting a network issue where every user is getting a host unreachable error, which usually comes from an application-layer protocol?

• Update the clients' IP address settings.
• Restart the DNS server and verify all the devices.
• Restart the DHCP server and verify all the services.
• Update the users' browser settings and verify them using a ping command. -

ANSWER- b. Restart the DNS server and verify all the devices. 2 / 3

A(n) _____ query requests the domain name that corresponds to a given IP address. - ANSWER- a. inverse

You are managing a website for a tech firm, and you notice that dnsserver1 and dnsserver2 cannot communicate properly across the company's WAN. What is the first step you should take when trying to solve this problem?

• Restart the DNS server.
• Create a DNS server backup.
• Update the DNS server's IP address.
• Verify the IP address for both of the servers. - ANSWER- d. Verify the IP

address for both of the servers.

A MIME message must - ANSWER- allow audio/video transmissions.

Which of the following protocols is used to send an email message from an email client to an email server? - ANSWER- SMTP

In your network, PC2 requests a file download from PC4, which receives the request and processes it. Which type of network are you using? - ANSWER- Peer- to-peer

Which of the following does SNMP define when sending packets from a manager to an agent and vice versa?

• User name
• Format of packets
• Number of packets
• Encoding of packets - ANSWER- b. Format of packets
• / 3