To indicate the start of a data frame
To provide redundancy for error correction
To detect errors in transmitted data
To ensure the confidentiality of the data
To map a MAC address to an IP address
To route data from one network to another
To configure IP addresses dynamically
To map an IP address to a MAC address
L=n*5
L=n-2
L=n-1
L=n*8
Ring
Local Area
Hierarchical
Star
Bus Topology
Ring Topology
Star Topology
Mesh Topology
High level of security
Scalability limitations
Ease of setup and maintenance
Centralized control over resources
Denial-of-Service (DoS)
Phishing
Spoofing
SQL injection
Routing
Data link control
End-to-end communication and error recovery
Network addressing
Transport Layer
Presentation Layer
Session Layer
Application Layer
Wide Area Net
Wide Access Network
Wide Area Network
Wide Access Net
IP/Netmask
IP/Subnet
IP/Router
IP/DNS
Hyper terminal tracing program
Hypertext tracing protocol
Hypertext transfer protocol
Hypertext transfer program
11 Mbps
54 Mbps
100 Mbps
600 Mbps
Flow control
Error detection and correction
Segmentation and reassembly
Packet routing
Denial-of-service attack
Man-in-the-middle attack
Password
Combined Approach
Public-Key
None of these
Define protocols for cellular networks
Specify protocols for wired Ethernet networks
Establish guidelines for satellite communication
Standardize protocols for local area wireless networks
10BASE-T
100BASE-TX
1000BASE-T
10GBASE-T
Time-To-Live (TTL)
Destination Address
Source Address
Checksum
Protocol
URL
E-mail address
ICQ
Ensuring secure encryption of data transmitted over the Internet.
Establishing physical connections between devices on the Internet.
Assigning unique addresses to devices and facilitating packet routing.
Controlling access to Internet resources through user authentication.
transpositional ciphers
substitution ciphers
both (a) and (b)
none of the mentioned
Bus
Tree
Mesh
Filtering
Encoding
Switching
None of the mentioned
Sender
Receiver
Sender and Receiver
None of the these
They require a centralized server
They can be less secure than client-server networks
They are more difficult to set up
They have limited scalability
443
80
22
21
Physical
Network
Data Link
Transport
10Mbps
20Mbps
30Mbps
40Mbps
25
The total number of packets sent over the network
The amount of data loss during transmission
The signal strength between two nodes
The amount of time data spends in transit
MX record
CNAME record
A record
PTR record
Faster data transmission
Easier network management
Reduced cost of hardware
Larger bandwidth allocation
IP
OSPF
ICMP
Ethernet
Collision Detection and Retransmission (CDR)
Carrier Sense Multiple Access with Collision Avoidance (CSMA/CA)
Token passing mechanism
Packet switching
It immediately retransmits the frame.
It sends a jam signal to inform other devices of the collision.
It waits for a random amount of time before retransmitting.
It increases the transmission power to avoid collisions.
0.0.0.0
127.0.0.1
255.255.255.255
0.255.255.255
Computer Security
Information Security
Network Security
It specifies the total length of the TCP segment
It indicates the length of the TCP header in 32-bit words
It denotes the maximum segment size that can be transmitted
It identifies the TCP version being used
53
Encrypting data transmissions
Blocking unauthorized access to a network
Managing cryptographic keys
Monitoring network traffic for malware
Combining multiple signals into a single transmission medium
Assigning different frequencies to each channel
Dividing the transmission time into fixed intervals
Utilizing different modulation techniques for each channel
To identify the physical location of a device on the network
To establish a connection between two devices on the network
To uniquely identify network interfaces
To encrypt data for secure transmission
The Internet exclusively uses wired connections.
The Internet is limited to communication within a single organization.
The Internet is a globally interconnected network of networks.
The Internet is controlled by a single centralized authority.
Decentralized network structure
Centralized control
Requires dedicated servers
Clients rely on servers for resources
300.200.100.50
192.168.1.1
10.0.0.1
Bandwidth
Latency
Packet size
All of the above
UDP traffic
TCP traffic
Both of the mentioned
The number of bits transferred per second
The frequency of the carrier wave
The number of errors corrected per second
The speed of the modem
Host to host
Application
Internet
Network Access