Ensurepass

 

QUESTION 281

A network is having problems with traffic flowing to several critical websites that are used for necessary company work. Which of the following appliances would BEST handle network traffic to increase network performance?

 

A.

Caching engine

B.

Traffic shaper

C.

Network based firewall

D.

Packet sniffer

 

Correct Answer: B

 

 


QUESTION 282

Which of the following can be described as a DoS attack?

 

A.

Disabling a specific system and making it unavailable to users

B.

Implementing a keylogger

C.

Intercepting a packet and decrypting the contents

D.

Communicating with employees to get company information

 

Correct Answer: A

Explanation:

A denial of service (DoS) attack is a malicious attempt to make a server or a network resource unavailable to users, usually by temporarily interrupting or suspending the services of a host connected to the Internet.

 

 

QUESTION 283

Which of the following cable types is unshielded?

 

A.

STP

B.

Twinax

C.

UTP

D.

Coax

 

Correct Answer: C

 

 

QUESTION 284

Users trying to access a website using HTTPS are being blocked by the firewall. Which of the following ports needs to be allowed?

 

A.

80

B.

143

C.

443

D.

3389

 

Correct Answer: C

 

 

 

 

QUESTION 285

Which of the following would be used to run an instance of a Layer 2 device within an application?

 

A.

Virtual switch

B.

Virtual router

C.

Virtual PBX

D.

NaaS

 

Correct Answer: A

 

 

QUESTION 286

A NAS appliance has had a failed NIC replaced. Now the NAS appliance is no longer visible on the network. Which of the following is the MOST likely cause of the problem?

 

A.

The network cable connecting the NAS to the network switch is bad.

B.

The network port that the appliance is connected to is assigned to the wrong VLAN.

C.

Port security on the Ethernet switch has disabled the port.

D.

Firewall needs to be updated for the new NAS device.

 

Correct Answer: C

Explanation:

As by port security switch find the changes in mac address because nic is replaced so due to security reason switch shut that port.

 

 

QUESTION 287

A technician needs to setup an Internet connection for a small office. There are five users that need the ability to use email and do online research. The office manager wants the connection to be always on and be as inexpensive as possible. Which of the following would BEST fit the needs of this office?

 

A.

Broadband

B.

T1

C.

Frame Relay

D.

Satellite

 

Correct Answer: A

 

 

QUESTION 288

Which of the following tools could attempt to detect operating system vulnerabilities?

 

A.

nslookup

B.

honeynet

C.

netstat

D.

nessus

 

Correct Answer: D

 

 

 

QUESTION 289

A customer wants to increase firewall security. Which of the following are common reasons for implementing port security on the firewall? (Select TWO).

 

A.

Preventing dictionary attacks on user passwords

B.

Reducing spam from outside email sources

C.

Shielding servers from attacks on internal services

D.

Blocking external probes for vulnerabilities

E.

Directing DNS queries to the primary server

 

Correct Answer: CD

Explanation:

Port security is required because if we keep the ports unsecure then hackers can do port scanning and can compromise the internal secured network so we will have to shield servers to avoid attacks from outside and we need to block incoming scanning request coming from outside.

 

 

QUESTION 290

Which of the following DNS records must be queried to resolve the IPv6 address of a website?

 

A.

CNAME

B.

PTR

C.

AAAA

D.

A

 

Correct Answer: C

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