Quiz 6 Flashcards

1
Q

Which of the following describes the relationship of a DNS ‘A’ record versus a ‘Pointer’ record?

A

The Address ‘A’ record has the reverse function of a Pointer Record.
The ‘A’ address type match FQDN’s to their IP Address. The Point record matches IP Addresses to their FQDN’s.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What is a DNS MX record?

A

A record for email servers
A mail exchange record (that is, MX record) maps a domain name to an e-mail (or message transfer agent) server for that domain.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

An administrator suspects an employee is bypassing policy to visit unauthorized websites during work hours. Besides consulting a proxy service, which of the following would reveal websites in the recent DNS cache?

A

Ipconfig /displaydns

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What hierarchical database was invented to match fully qualified domain names to IP addresses?

A

The Domain Name System (DNS) is a global hierarchy system that resolves names to IP addresses.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is the purpose of a DNS server?

A

Providing an IP address for a fully qualified domain name

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

A multicast streaming service is being implemented to host a new live video conferencing application. Which of the following protocols will be required for this?

A

IGMP
Internet Group Management Protocol allows for multicast traffic to be created and users to join using Class D addresses.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

The security team has determined that the lack of accurate timestamps is creating a vulnerability in the network’s ability to audit login attempts. What service can help with this?

A

NTP
Network Time Protocol establishes a common system time for timestamps to be based off of.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is the name of the technology has changed the landscape of modern networking by moving the control functionality of a networking device to a central managed location?

A

Software-defined networking (SDN)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Which NTP concept is a metric for the distance between the NTP client and the server?

A

Stratum
The stratum is a value used in NTP to provide an indicator of how many hops a client is away from the NTP server.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What type of DNS message is often used to perform a reverse lookup?

A

PTR
A pointer record in DNS points to a canonical name. This record type is typically used to perform reverse lookups when required.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q
A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly