Which protocol is used to automatically assign IP addresses and other network parameters to devices on a network?

• DHCP
• NTP
• ARP
• ICMP

DHCP uses a client-server model to allocate network addresses. True or False?

What is the main purpose of the Address Resolution Protocol (ARP)?

• Assign IP addresses to devices
• Synchronize clocks on network devices
• Map IP addresses to MAC addresses
• Monitor network traffic

Name one of the three DHCP allocation mechanisms.

• dynamic allocation

Which DHCP message does a client broadcast first when it wants to obtain an IP address?

• DHCPOFFER
• DHCPDISCOVER
• DHCPREQUEST
• DHCPACK

NTP is used to synchronize the clocks of computers and network devices. True or False?

What does a DHCP lease define?

• The physical address of a device
• The time period an IP address is assigned to a client
• The network mask for a device
• The default gateway of the network

Which port number does a DHCP server listen to for client requests?

• 53
• 67
• 80
• 443

In ARP, what happens if the ARP table does not have a mapping for a required IP address?

• The device drops the packet
• The device sends an ARP request
• The device assigns a random MAC address
• The device waits for a response

Which protocol is used for time synchronization in a network?

• ntp

The ARP table is stored in the device's RAM and is updated dynamically. True or False?

What is the function of Proxy ARP?

• Assigns static IP addresses
• Allows a device to act as an ARP proxy for another network
• Synchronizes time between devices
• Disables ARP on an interface

Which DHCP message does a server send to confirm the assignment of an IP address?

• DHCPNAK
• DHCPACK
• DHCPDECLINE
• DHCPINFORM

What does NTP use as its reference for the 'true' time?

• utc

Dynamic allocation is the most widely used DHCP allocation mechanism. True or False?

Which ARP mode requires manual entry of MAC addresses on all devices?

• Enabled
• Reply Only
• Proxy ARP
• Disabled

What is the main vulnerability of older NTP versions?

• They leak MAC addresses
• They can be used for denial of service attacks
• They assign wrong IP addresses
• They disrupt DHCP operations

ICMP is the IPv4 equivalent of which protocol in IPv6?

• ndp

ARP is only used for IPv4 networks. True or False?

What is stored in each entry of the ARP table?

• IP address and subnet mask
• MAC address and hostname
• IP address and MAC address
• IP address and gateway