network security

Question 1

symmetric encryption

Answer 1

sender and receiver uses same key to encrypt and decrypt a message

Question 1

DES

Answer 1

DATA ENCRYPTION STANDARD
56 BIT ENCRYPTION KEY

Question 2

TRIPLE DES

Answer 2

USES 3 56 BIT KEYS..
ENCYPT-> DECRYPT->ENCRYPT

Question 3

AES

Answer 3

ADVANCED ENCRYPTION STANDARD

128 BIT 192 BIT AND 256 BIT KEYS

1000X FASTER THEN DES

Question 4

ASYMMETRIC ENCRYPTION

Answer 4

SENDER AND RECIEVER ISE DIFFERENT KEYS TO ENCRYPT AND DECRYPT A MESSAGE….

LOCK, KEY, AND PW TO PROTECT A KEY

LOCK IS SENT TO FRIENDS,

THEY SEND HER MESSAGES WITH HER LOCK,

SHE UNLOCKS HER KEY WITH HER PW.

SHE USES HER KEY TO OPEN HER LOCK TO READ THE MESSAGES,

Question 5

PKI

Answer 5

PUBLIC KEY INFRASTRUCTURE

Question 6

INTEGRITY

Answer 6

ENSURES DATA WAS NOT MODIFIED IN TRANSIT AND VERIFIES IT CAME FROM THE ORIGINAL SOURCE

Question 7

HASHING

Answer 7

MAINTAIN INTERGRITY

RUNS A STRING OF DATA THROUGH AN ALGORITHM, CREATING A HASH THAT SERVES AS A UNIQUE INDIVIDUAL FINGERPRINT FOR A FILE OR DATA SET.

Question 8

MD5

Answer 8

128BIT - HASH

Question 9

SHA-256

Answer 9

256BIT - HASH

Question 10

CRAM-MD5

Answer 10

MD5 VARIANT USED IN EMAIL SYSTEMS - HASH

Question 11

PSK

Answer 11

Pre-Shared Key
security authentication where the same password or key being used on both the wireless access point and any connecting client devices to gain access to the network

Question 12

802.1x

Answer 12

Most widely used enterprise grade authentication method

own username and password

Question 13

WEP

Answer 13

Wired Equivalent Privacy —BAD
Never Use it
PSK- Static 40 bit key

Question 14

WPA

Answer 14

Wifi Protected access

TKIP 48bit + RC

Question 15

WPA3