Week_2

Question 1

Name a replacement for SSL

Answer 1

TLS(Transport Layer Security)

Question 2

What is a Idempotent Method?

Answer 2

Multiple requests should have the same result as a singl request

Question 3

Name 3 SSL Objectives.

Answer 3

Quthenticating the client and server to each other

Ensuring data integrity

Securing data privacy

Question 4

How many protocols does SSL use?

Answer 4

Zero

Question 5

What does SSL Handshake Protocol do?

Answer 5

Uses SSL record protocol to establish a SSL connection.

Authenticates the served to the client
Establishes an encrypted SSL connection

Question 6

What does SSL Record Protocol do?

Answer 6

Defines data transmit format

Ensure data security and integrity

Question 7

What does the Header contain?

Answer 7

Length of record

Length of padding

Question 8

What is MAC responsible for?

Answer 8

MAC is responsible for the verification and integrity of the message.

Question 9

Name one hash function used to calculate MAC.

Answer 9

MD5

Or

SHA-1

Question 10

Name 3 components established by CipherSuite

Answer 10

Method of key exchange between the server and client

Encryption algorithm for data encryption purposes

Function used for obtainjng the MAC value

Question 11

What is certificate exchange?

Answer 11

When the server sends a certificate to the client for authentication

Question 12

What is the primary function of a web server?

Answer 12

Deliver web pages

Question 13

What does the path translation “URL” stand for?

Answer 13

Uniform Resource Locator

Question 14

What is faster kernal mode or user mode?

Answer 14

Kernal

Question 15

Why is Kernal mode faster than user mode?

Answer 15

Kernal mode can directly use all the hardware resources is needs.

Question 16

Why is User mode slower than Kernal mode?

Answer 16

User mode has to request permission to use more memory or CPU.

Takes time
Resources not always available

Question 17

How many concurrent client connections can load limit hold?

Answer 17

Between 2-80,000 per IP address

Question 18

Name some causes for an overload

Answer 18

Too much legitimate concurrent web traffic

DDOS
Computer worms
Viruses
Internet bots
Network slowdowns
Web server unavailability

Question 19

Name some anti-overload techniques

Answer 19

Managing network traffic with: firs,HTTP traffic nanagers, bandwidth management and traffic shaping.

Web cache techniques
Using different domain names
Multiple web servers per host

Question 20

What percentage rule should you follow for caching?

Answer 20

80%-traffic 20%-web pages