Domains 3

On our systems, what is the Southbridge connected to?

• All of these.

• Mouse/Keyboard.

• Wireless.

• CPU

Answer explanation

The south bridge is connected to the hard disks and other drives, USB ports and other peripherals (and the north bridge).

Which of these encryption methods is truly unbreakable if it is implemented right?

• Enigma

• A Vigenère cipher.

• Symmetric encryption.

• One-time pads.

Answer explanation

One-Time Pad: Cryptographic algorithm where plaintext is combined with a random key. It is the only existing mathematically unbreakable encryption. While it is unbreakable it is also very impractical. It has ONE use per pad; they should never be reused. Characters on the pad have to be truly random. The pads are kept secure.

In our physical access control, we use gates and fences to ensure what happens.?

• Allow easy entry and exit from our facility.

• Allow easy entry and exit from our facility.

• Ensure entry and exit from our facility only happen through the gates.

• Allow employees to exit in an emergency safely.

When we talk about WORM media, what are we referring to?

• RAM

• Hard disks.

• R DVD's.

• EEPROM.

What handles all access between objects and subjects in the computer kernel?

• Reference monitor.

• Superuser mode.

• Supervisor mode.

• User mode.

We are adding hashing to our passwords. Which of these is a hashing function we could consider?

• RSA

• DES

• Salting

• RIPEMD

The NSA wanted to embed the clipper chip on all motherboards. Which encryption algorithm did the chip use?

• DSA

• Skipjack

• RSA

• 3DES

Which of these would be a TRUE statement about symmetric encryption?

• All of these.

• It uses private and public keys to share a session key.

• It is the strongest per bit.

• It does not use a shared key.

We have seen an increasing number of viruses on our systems. As part of our defense in depth, we have implemented multiple overlapping countermeasures to mitigate the issues we have been having with viruses. Which of these are types of viruses?

(Select all that apply).

• Trojans

• Polymorphic

• Boot Sector.

• Macro

• Logic Bombs.

We are looking at adding type 1 VM Hypervisors to our environments. What do they run on top of?

• The hypervisor.

• hardware

• The virtual machine.

• The OS.