Chapter 5-7 ITEC 245
Refer to the exhibit. What is the destination MAC address of the Ethernet frame as it leaves the web server if the final destination is PC1?
00-60-2F-3A-07-CC
The 8-digit binary value of the last octet of the IPv4 address 172.17.10.7 is
00000111
The binary number 0000 1010 can be expressed as ___ in hexadecimal
0A
The last host address on the 10.15.25.0/24 network is
10.15.25.254
Which IPv4 address can a host use to ping the loopback interface?
127.0.0.1
The network portion of the address 172.16.30.5/16 is
172.16
Refer to the exhibit. Using the network in the exhibit, what would be the default gateway address for host A in the 192.133.219.0 network?
192.133.219.1
The shortest compressed format of the IPv6 address 2001:0DB8:0000:1470:0000:0000:0000:0200 is
2001:DB8:0:1470::200
A packet leaving PC-1 has to traverse ___ hops to reach PC-4.
3
What is the decimal equivalent of the hexadecimal value of 3F?
63
The minimum Ethernet frame size is ___ bytes. Anything smaller than that should be considered a "runt frame."
64
On Ethernet networks, the hexadecimal address FF-FF-FF-FF-FF-FF represents the ___ MAC address.
Broadcast
When the store-and-forward method of switching is in use, what part of the Ethernet frame is used to perform an error check?
CRC in the trailer
Which key combination allows a user to abort setup mode?
Ctrl-C
When transporting data from real-time applications, such as streaming audio and video, which field in the IPv6 header can be used to inform the routers and switches to maintain the same path for the packets in the same conversation?
Flow Label
Refer to the graphic. H2 has sent a broadcast message to all of the hosts. If host H1 wants to reply to the broadcast message, which statement is true?
H1 sends a unicast message to H2, and the switch forwards it directly to H2.
Which two functions or operations are performed by the MAC sublayer? (Choose two.)
It is responsible for Media Access Control. AND It adds a header and trailer to form an OSI Layer 2 PDU.
Which action is taken by a Layer 2 switch when it receives a Layer 2 broadcast frame?
It sends the frame to all ports except the port on which it received the frame.
The Ethernet _____ sublayer is responsible for communicating directly with the physical layer.
MAC
A router may have to fragment a packet when forwarding it from one medium to another medium that has a smaller ___
Maximum Transmission Unit
If there are two or more possible routes to the same destination, the ___ is used to determine which route is used in the routing table.
Metric
The acronym ___ is used to define the process that allows multiple devices to share a single routable IP address.
NAT
Open the PT activity. Perform the tasks in the activity instructions and then answer the question. Which interfaces in each router are active and operational?
R1: G0/0 and S0/0/0 R2: G0/1 and S0/0/0
Refer to the exhibit. PC1 issues an ARP request because it needs to send a packet to PC3. In this scenario, what will happen next?
RT1 will send an ARP reply with its own Fa0/0 MAC address.
In which alternative to DHCPv6 does a router dynamically provide IPv6 configuration information to hosts?
SLAAC
How does the network layer use the MTU value?
The MTU is passed to the network layer by the data link layer.
What is the prefix length notation for the subnet mask 255.255.255.224?
The binary format for 255.255.255.224 is 11111111.11111111.11111111.11100000. The prefix length is the number of consecutive 1s in the subnet mask. Therefore, the prefix length is /27.
Within a production network, what is the purpose of configuring a switch with a default gateway address?
The default gateway address is used to forward packets originating from the switch to remote networks.
Which value, that is contained in an IPv4 header field, is decremented by each router that receives a packet?
Time-to-Live
An IPv6 enabled device sends a data packet with the destination address of FF02::1. What is the target of this packet?
all IPv6 enabled devices on the local link or network
FF02::1
all node multicast
What type of address is 01-00-5E-0A-00-02?
an address that reaches a specific group of hosts
During the boot process, where will the router bootstrap program look for the IOS image by default?
flash
This network portion of the address is assigned by the provider.
global routing prefix
2001:DB8::BAF:3F57:FE94
global unicast
This part of the address is the equivalent to the host portion of an IPv4 address.
interface ID
Which type of IPv6 address is not routable and used only for communication on a single subnet?
link-local address
::1
loopback
Which portion of the network layer address does a router use to forward packets?
network portion
What are two functions that are provided by the network layer? (Choose two.)
providing end devices with a unique network identifier AND directing data packets to destination hosts on other networks
What is the primary purpose of ARP?
resolve IPv4 addresses to MAC addresses
A Layer 2 switch is used to switch incoming frames from a 1000BASE-T port to a port connected to a 100Base-T network. Which method of memory buffering would work best for this task?
shared memory buffering
FF02::1:FFAE:F85F
solicited node multicast
When a switch configuration includes a user-defined error threshold on a per-port basis, to which switching method will the switch revert when the error threshold is reached?
store-and-forward
This part of the address is used by an organization to identify subnets.
subnet ID
A user who is unable to connect to the file server contacts the help desk. The helpdesk technician asks the user to ping the IP address of the default gateway that is configured on the workstation. What is the purpose for this ping command?
to test that the host has the capability to reach hosts on other networks
Which network migration technique encapsulates IPv6 packets inside IPv4 packets to carry them over IPv4 network infrastructures?
tunneling
Which two types of devices are typically assigned static IP addresses? (Choose two.)
web servers AND printers