SAQs

1. What is the difference between IP address and MAC Address

Differences between IP Address and MAC Address

	IP Address	MAC Address
Full Form	Internet Protocol Address	Media Access Control Address
Function	Used to identify a device on a network and facilitate communication between devices.	Used to identify a device at the data link layer (Layer 2) of the OSI model.
Length	32 bits (IPv4) and 128 bits (IPv6)	48 bits
Format	4 parts (IPv4) and 8 hextets (IPv6) separated by dots or colons.	6 pairs of hexadecimal digits separated by hyphens or colons.
Scope	Globally unique and can be changed.	Unique within a network segment and usually cannot be changed.

IP Address vs MAC Address

IP addresses are used for logical addressing, while MAC addresses are used for physical addressing.
IP addresses are routed between networks, whereas MAC addresses are used within a network segment.
IP addresses can be changed (e.g., by a DHCP server), while MAC addresses are typically fixed and tied to the network interface card.

2. Define email security

Email Security Overview

Email security refers to the protection of email communications from unauthorized access, disclosure, modification, or disruption. This includes safeguarding email accounts, content, and related data from various types of threats.

Email Security Threats

Phishing: Attempts to trick users into revealing sensitive information, such as passwords or credit card numbers.
Spam: Unsolicited commercial emails that can be used to spread malware or conduct phishing attacks.
Email spoofing: Forging the sender's email address to mislead recipients about the email's origin.
Malware: Software designed to harm or exploit email recipients' systems.

Email Security Measures

Encryption: Protecting email content with cryptographic techniques to ensure confidentiality.
Authentication: Verifying the sender's identity and email authenticity.
Anti-virus software: Scanning emails for malware and other malicious attachments.