Determine the class:

10100111 11011011 10001011 01101111

• B

• A

• E

• C

Which of the following is the correct for given dotted-decimal address:

241.8.56.12

• 11110001 00001000 00111000 00001100

• 01001011 00101101 00100010 01001110

• 01101111 00111000 00101101 01001110

The term IANA stands for?

• 
  Internal Associative Numbers Authority

• 
  Internet Associative Numbers Authoritative

• Internet Assigned Numbers Authority

• 
  Internal Assigned Numbers Authority

Select from the following which represents the last address of IP address.

• 
  Unicast address

• 
  Network address

• 
  Broadcast address

• None of the above

Select the address of class A, B and C are

• Reserved

• Unicast

• 
  Multicast

• 
  
  

  None of the above

Select the wrong class.

• CLASS A = 1 to 126

• CLASS B = 128 to 191

• CLASS C = 192 to 220

• CLASS D = 224 to 239

You have a network that needs 29 subnets while maximizing the number of host addresses available on each subnet. How many bits must you borrow from the host field to provide the correct subnet mask?

• 2

• 5

• 6

• 1

Which of the following best describes the role of a router?

• Routers operate at the Physical Layer of the OSI model, managing cable connections.

• Routers are primarily responsible for encrypting and decrypting data packets in transit.

• Routers determine the optimal path for data packets to travel between different networks.

• Routers provide a secure tunnel for remote access to network resources.

In the context of VPN technologies, which VPN protocol provides the strongest security and is often used for secure remote access and site-to-site connections, leveraging both encryption and authentication mechanisms?

• PPTP (Point-to-Point Tunneling Protocol)

• L2TP (Layer 2 Tunneling Protocol)

• SSTP (Secure Socket Tunneling Protocol)

• IPsec (Internet Protocol Security)

Which type of attack is characterized by the exploitation of software or hardware vulnerabilities that are unknown to the vendor and for which no patches or fixes are available?

• Insider threat

• Zero-day attack

• Phishing attack

• DDoS attack