Ch. 2 - System Fundamentals

Question 1

At which level of the OSI model does a proxy operate?

Answer 1

Application

Question 2

If a device is using node MAC addresses to funnel traffic, what layer of the OSI model is this device working on?

Answer 2

Layer 2

Question 3

Which OS holds 90% of the desktop market an dis one of our largest attack surfaces?

Answer 3

Windows

Question 4

What port uses SSL to secure web traffic?

Answer 4

443

Question 5

What kind of domain resides on a single switch port?

Answer 5

Collission domain

Question 6

Which network topology uses a token-based access methodology?

Answer 6

Ring

Question 7

Hubs operate at what level of the OSI model?

Answer 7

Layer 1

Question 8

What is the proper sequence of the TCP 3-way handshake?

Answer 8

Syn, Syn-Ack, Ack

Question 9

Is TCP a connection oriented or connectionless protocol?

Answer 9

TCP is a connection oriented protocol.

Question 10

A scan of a network client shows that port 21 is open. What protocol is this aligned with?

Answer 10

Telnet

Question 11

What port range is an obscure third-party application likely to use?

Answer 11

49152 to 65535

Question 12

Which category of firewall filters is based on packet header data only?

Answer 12

Packet

Question 13

An administrator has just been notified of irregular network activity; what appliance functions in this manner?

Answer 13

IDS

Question 14

Which topology has built-in redundancy because of its many client connections?

Answer 14

Hybrid

Question 15

What device acts as an intermediary between an internal client and a web resource?

Answer 15

Proxy

Question 16

When scanning a network via a hardline connection to a wired-switched NIC in promiscuous mode, what would be the extent of network traffic you would expect to see?

Answer 16

All nodes attached to the same port

Question 17

Which technology allows the use of a single public address, to support many internal clients while also preventing exposure of internal IP addresses to the outside world?

Answer 17

NAT

Question 18

What network appliance senses irregularities and plays an active role in stopping the irregular activity from continuing?

Answer 18

IPS

Question 19

Choosing a protective network appliance, you want a device that will inspect packets at the most granular level possible while providing improved traffic efficiency. What appliance would satisfy these requirements?

Answer 19

Application Firewall

Question 20

You have selected the option in your IDS to notify you via email if it senses any network irregularities. Checking the logs you notice a few incidents but you didn’t receive any alerts. What protocol needs to be configured on the IDS?

Answer 20

SMTP