Exploring the Packet Delivery Process Flashcards
Does a Layer 2 switch have a MAC address?
A. Yes, for remote access management
B. Yes, for frame forwarding
C. Yes, for packet routing
D. No
A. Yes, for remote access management
The correct answer is “Yes, for remote access management.” Switches do not need assigned MAC addresses for frame forwarding. However, they need a MAC address when remote access management is configured.
Which device is at the local network boundary de-encapsulating frames?
A. server
B. switch
C. router
D. hub
C. router
Which three statements about a default gateway are true? (Choose three.)
A. The default gateway and the host IPv4 addresses have the same network and subnet portions.
B. The default gateway serves to deliver packets within a local network.
C. You normally configure the default gateway as an address on a Layer 3 switch interface.
D. You normally configure the default gateway as an address on a Layer 2 switch interface.
E. You normally configure the default gateway as an address on a router.
A. The default gateway and the host IPv4 addresses have the same network and subnet portions.
C. You normally configure the default gateway as an address on a Layer 3 switch interface.
E. You normally configure the default gateway as an address on a router.
On which OSI layer does ARP function?
A. Layer 7
B. Layer 3
C. Layer 1
D. Layer 2
D. Layer 2
When a frame is forwarded to the destination by the router, what happens with Layer 2 and Layer 3 addresses in the frame?
A. The router changes Layer 2 addresses, while Layer 3 addresses remain the same.
B. The router changes Layer 2 and Layer 3 addresses.
C. No addresses are changed by the router.
D. The router changes Layer 3 addresses, while Layer 2 addresses remain the same.
A. The router changes Layer 2 addresses, while Layer 3 addresses remain the same.
What device will de-encapsulate a frame, read the destination IPv4 address in the packet, forward a packet to outgoing interface and re-encapsulate packet in a different frame before sending?
A. router
B. switch
C. hub
D. server
A. router
What is used by a router to determine where to forward data?
A. routing table
B. ARP table
C. MAC address table
D. OSPF database
A. routing table
Which command do you use to display the ARP table on Microsoft Windows?
A. show arp table
B. show arp
C. show ip arp
D. arp -a
D. arp -a
Host A with an IPv4 address 192.168.99.15/24 wants to send several packets to several destination IPv4 addresses listed here. Which address requires the use of a default gateway?
A. 192.168.99.17/24
B. 192.168.40.39/24
C. 192.168.99.39/24
D. 192.168.99.167/24
B. 192.168.40.39/24
Which Cisco IOS command do you use to display the ARP table on a Cisco device?
A. show arp table
B. show -a
C. show ip arp
D. arp -a
C. show ip arp
Which three options are Layer 2 Ethernet characteristics? (Choose three.)
A. Ethernet uses MAC addresses.
B. Layer 2 addressing identifies end devices in the LAN.
C. Layer 2 enables the packet to be carried by the local media across each segment.
D. Ethernet uses IPv4 addresses.
E. Layer 2 identifies applications in the LAN.
A. Ethernet uses MAC addresses.
B. Layer 2 addressing identifies end devices in the LAN.
C. Layer 2 enables the packet to be carried by the local media across each segment.
Which two features does ARP provide? (Choose two.)
A. mapping IPv4 addresses to applications on a network
B. mapping IPv4 addresses to MAC addresses on a network
C. locally storing DLCIs that are learned via ARP
D. mapping MAC addresses to DLCIs on a network
E. locally storing MAC addresses that are learned via ARP
B. mapping IPv4 addresses to MAC addresses on a network
E. locally storing MAC addresses that are learned via ARP
Which two statements regarding ARP are true? (Choose two.)
A. A device can use ARP to assign the MAC addresses to dynamic NICs.
B. ARP entries are permanent.
C. ARP entries are not permanent.
D. A device can use ARP to assign an IPv4 address to the requester.
E. Devices can exchange entire ARP tables.
F. ARP tables are created and maintained dynamically.
C. ARP entries are not permanent.
F. ARP tables are created and maintained dynamically.
When a frame is forwarded to the destination by a switch, what happens with Layer 2 and Layer 3 addresses in the frame?
A. The switch changes Layer 2 addresses, while Layer 3 addresses remain the same.
B. The switch changes Layer 3 addresses, while Layer 2 addresses remain the same.
C. No addresses are changed by the switch
D. The switch changes Layer 2 and Layer 3 addresses.
C. No addresses are changed by the switch
