Correct Answer:

Soft wipe is correct.

Deleting files is considered soft wiping.

Incorrect Answers:

Hard wipe, NTFS wipe, and zero wipe is incorrect.

Hard wipes zero-out all disk sectors.

There is no such thing as an NTFS wipe.

There is no such thing as a zero wipe.

Correct Answer:

Public key is correct.

In Public Key Infrastructure, the public key of the recipient is used to encrypt messages to the recipient, who uses a related private key to decrypt messages.

Incorrect Answers:

Private key, cipher key, and asymmetric key is incorrect.

Private keys decrypt messages.

Cipher key is not a valid term.

Asymmetric key is not as specific as public key.

Correct Answer:

ACL is correct. Access control lists (ACLs) determine which permissions users have to resources.

Incorrect Answers:

Johanne’s user account, Johanne’s audit log, and PKI certificate are incorrect.

File permissions are not set within a user account.

File permissions are not set within an audit log.

File permissions are not set within a PKI certificate.

Correct Answer:

Temperature too high is correct.

Server CPU performance can be throttled (lessened) when temperatures are too high.

Incorrect Answers:

High humidity, low humidity, and temperature too low are incorrect.

High humidity could cause condensation and eventual corrosion of components or shorting out of electrical equipment.

Low humidity results in potential electrostatic discharge.

Unless the temperature is at freezing or below, cooler is normally better for server equipment.

Correct Answer:

`netstat` is correct.

`netstat` shows both local and foreign ports for active sessions.

Incorrect Answers:

`ping`, `tracert`, and `nslookup` are incorrect.

`ping` is used to verify whether a host can communicate on a network.

`tracert` is used to see how far down the line (through routers) transmissions can get.

`nslookup` is a name resolution tool.

Correct Answer:

Multimeter is correct.

A multimeter is used to test power supplies.

Incorrect Answers:

Rescue disk, OTDR, and TDR is incorrect.

A rescue disk is used when a server no longer boots normally. B

An optical time domain reflectometer (OTDR) is used to test fiber-optic cable continuity.

A time domain reflectometer (TDR) is used to test copper-based cable continuity.

Correct Answer:

IDS is correct. An intrusion detection system (IDS) can log and send alerts about suspicious activity.

Incorrect Answers:

IPS, packet sniffer, and disk encryption are incorrect.

An intrusion prevention system (IPS) can do what an IDS can do with the added capability of stopping the intrusion, but this is not a requirement of the scenario.

Packet sniffers do not log and send alerts about suspicious activity.

Disk encryption does not log and send alerts about suspicious activity.

Correct Answer:

RAID 6 is correct.

RAID 6 can tolerate up to two simultaneous disk failures.

Incorrect Answers:

RAID 0, RAID 1, and RAID 5 are incorrect.

RAID 0 cannot tolerate two simultaneous disk failures.

RAID 1 cannot tolerate two simultaneous disk failures.

RAID 5 cannot tolerate two simultaneous disk failures.

Correct Answer:

Single-factor authentication is correct.

Both a username and a password are “something you know”; therefore, they are single-factor authentication.

Incorrect Answers:

Dual-factor authentication, multifactor authentication, and full authentication are incorrect.

Dual-factor authentication requires more than a single authentication category such as “something you know”; users could also require “something you have” such as a smartcard.

Multifactor authentication requires more than a single authentication category such as “something you know”; user could also require “something you have” such as a smartcard.

Full authentication is not a valid term.

Correct Answer:

`ping` is correct.

Assuming ICMP echo requests are not blocked, the `ping` command returns a response to indicate a host is communicating on the network.

Incorrect Answers:

`linux-ping`, `nslookup`, and `dig` are incorrect.

`linux-ping` is not a valid command.

`nslookup` is a Linux command that is used to test and troubleshoot name resolution.

`dig` is a Linux command that is used to test and troubleshoot name resolution.