Security Protocols

Question 1

(IPsec) IPsec is a set of protocols for security at the _______ layer of the OSI model.

Answer 1

network

Question 2

(IPsec) It encrypts the data when communication is happening between ___ _________.

Answer 2

two, computers

Question 3

(IPsec) But, in order to use IPsec, both sender and receiver must share a ______ ___. This key is what locks and unlocks the ____ that is being communicated as it travels across a _______. This ensures that the data cannot be read or tampered with.

Answer 3

public, key, data, network

Question 4

(IPsec) IPsec also verifies the ____ to make sure the data is ________ exactly as when it was sent.

Answer 4

data, received

Question 5

(IPsec) IPsec also has two modes: _________ and ______. In transport mode, only the message portion of the data packet is _________. But in tunnel mode, the entire ____ ______ is encrypted.

Answer 5

transport, tunnel, encrypted, data, packet

Question 6

(L2TP) Layer 2 Tunneling Protocol is a combination of Cisco’s _____ __ Forwarding and _____-__-_____ _________ Protocol.

Answer 6

Layer, 2, Point-to-point, tunneling

Question 7

(L2TP) This protocol authenticates in two ways using digital ____________.

Answer 7

certificates

Question 8

(L2TP) It authenticates both the ________ and the ____. It does this to ensure that the data is not tampered with during the ______________ process, which is known as a ___-__-___-______ attack.

Answer 8

computer, user, authentication , man-in-the-middle

Question 9

(SSL) SSL or ______ ______ _____ is the protocol that is used to ensure ________ on the internet.

Answer 9

Secure, Socket, Layer, Security

Question 10

(SSL) SSL uses public key encryption to ______ ____, and it’s commonly associated with ____.

Answer 10

secure, data, HTTP

Question 11

(SSL) for example, if you were to go to an e-commerce website, you will notice that an “s” has been added to ____, which indicates that you are now using ___ in your web browser.

Answer 11

HTTP, SSL

Question 12

(SSL) SSL provides protection in three ways: it _____________ the ______, the ______, and it ________ the data.

Answer 12

authenticates, server, client, encrypts

Question 13

(TLS) Transport Layer Security is the latest industry standard ___ ________. It’s the successor to SSL, and it’s based on the ____ specifications.

Answer 13

SSL, protocol, same

Question 14

(TLS) Like SSL, it also authenticates a ______, ______, and ________ the data.

Answer 14

server, client, encrypts

Question 15

(TLS) TLS is made up of two layers. The first layer is the TLS record protocol, which provides __________ ________ by making sure the connection is _______ and reliable

Answer 15

connection, security, private

Question 16

(TLS) The second layer is the TLS handshake protocol, which allows the server and client to __________ each other and negotiate an __________ algorithm and _____________ keys before data is sent out.

Answer 16

authenticate, encryption, cryptographic

Question 17

(TLS) The goal for TLS is to make SSL _____ and more ______.

Answer 17

safer, secure

Question 18

(802.1x) 802.1X, and this standard is used for both _____ and ________ networks.

Answer 18

wired, wireless

Question 19

(802.1x) It controls network access by _____. So, if authentication passes, the port is ______, and if the authentication fails, the port is ______.

Answer 19

ports, opened, closed