Cisco chapters 7 and 8
Which part of an Ethernet Frame uses a pad to increase the frame field to at least 64 bytes?
Data field
Which field in an IPv4 packet header will typically stay the same during its transmission?
Destination Address
Which part of an Ethernet frame detects errors in the frame
Frame Check Sequence
Which function or operation is performed by the LLC sublayer?
It communicates with upper protocol layers.
Which is true of IPv6 header?
It consists of 40 octets It contains 8 header fields
Which two functions or operations are performed by the MAC sublayer?
It is responsible for Media Access Control
Which part of an Ethernet Frame notifies the receiver to get ready for a new frame?
Preamble
Which field includes common values such as ICMP(1), TCP(6), and UDP (17)?
Protocol
What is auto-MDIX?
a feature that detects Ethernet cable type
What type of address is 01-00-5E-0A-00-02
an address that reaches a specific group of hosts
What feature automatically negotiates the best speed and duplex setting between interconnecting devices?
autonegotiation
When a router receives a packet, what information must be examined in order for the packet to be forwarded to a remote destination
destination IP address
Which information is used by routers to forward a data packet towards its destination?
destination IP address
Which network device has the primary function to send data to a specific data to a specific destination based on the information found in the MAC address table?
switch
Which network device makes forwarding decisions based on the destination MAC address that is contained in the frame?
switch
What addressing information is recorded by a switch to build its MAC address table?
the source Layer 2 address of incoming frames
What is the special value assigned to the first 24 bits of a multicast MAC address transporting an IPv4 packet?
01-00-5E
Which IPv4 address can a host use to ping the loopback interface?1
127.0.0.1
What are the two sizes (minimum and expected maximum) of an Ethernet frame?
1518 bytes 64 bytes
Which part of an Ethernet Frame describes the high-layer protocol that is encapsulated?
EtherType
Which field in an IPv6 packet is used by the router to determine if a packet has expired and should be dropped
HOP limit
Which field is used to detect corruption in the IPv4 header
Header Checksum
Which three options are major issues associated with IPv4?
IP address depletion increased network complexity and internet routing table expansion lack of end-to-end connectivity
Which statement accurately describes a characteristic of IPv4?
IPv4 has a 32-bit address space
Which two characteristics describe Ethernet technology?
It uses unique MAC addresses to ensure that data is sent to the appropriate destination It is supported by IEEE 802.3
What will a host on an Ethernet network do if it receives a frame with a unicast destination MAC address that does not match its own MAC address?
It will discard the frame
Which data link sublayer controls the network interface through software drivers?
LLC
Which data link sublayer works with the upper layer to add application information for delivery of data to higher level protocols?
LLC
Which statement about host forwarding decisions is true?
Local hosts can reach each other without the need of a router
When the switch forwards the frame, which statements are true?
Switch adds the source MAC address which is currently not in the MAC address table FRAME is a unicast frame and will be sent to specific port only.
Which is true of the IPv6 packet header?
The Hop Limit field replaces the IPv4 Time to Live field
Which characteristic describes an IPv6 enhancement over IPv4?
The IPv6 header is simpler than the IPv4 header is, which improves packet handling.
How does the network layer use the MTU value?
The MTU is passed to the network layer by the data link layer.
Which default gateway statement is true?
The default gateway address is the IP address of the router on the local network
Which statement is true about MAC addresses?
The first three bytes are used by the vendor assigned OUI.
What happens to runt frames received by a Cisco Ethernet Switch?
The frame is dropped.
A computer has to send a packet to a destination host in the same LAN. How will the packet be sent?
The packet will be sent directly to the destination host.
Which statement is correct about IPv4 packet header fields
The source and destination IPv4 addresses remain the same while traveling from source to destination
Which is a characteristic of static routes?
They are manually configured.
What statement describes a characteristic of MAC addresses?
They must be globally unique
True or False? A router can be configured with a combined of both static routes and a dynamic routing protocol.
True
When a connectionless protocol is in use at a lower layer of the OSI model, how is missing data detected and retransmitted if necessary?
Upper-layer connection-oriented protocols keep track of the data received and can request retransmission from the upper-level protocols on the sending host.
What does a code of "O" indicate next to a route in the routing table
a route learned dynamically from OSPF
What delivery method does not guarantee that the packet will be delivered fully without errors?
best effort
What is a function of the MAC sublayer?
controls access to media checks for errors in received bits uses CSMA/CD or CSMA/CA to support Ethernet technology
Which switching method can be implemented using fast-forward switching or fragment-free switching?
cut-through switching
What are two methods for switching data between ports on a switch
cut-through switching store-and-forward switching
Which layer is responsible for taking an IP packet and preparing it for transmission over the communications medium
data link layer
This type of route is also known as a gateway of last resort
default route
What are the two most commonly referenced fields in an IPv4 packet header that indicate where the packet is coming from and where it is going?
destination IP address source IP address
What is the term for splitting up and IP packet when forwarding it from one medium to another medium with a smallar MTU?
fragmentation
Which two options are improvements provided by IPv6 as compared with IPv4?
increased the IP address space uses simpler header to provide improved packet handling
Which command can be used on a Windows host to display the routing table?
netstat -r
Which two commands could be entered on a Windows host to view its IPv4 and IPv6 routing table?
netstat -r route print
Which two types of memory buffering techniques are used by switches?
port-based memory buffering shared memory buffing
What is the command used on a Cisco IOS router to view the routing table
show ip route
What information is added during encapsulation at OSI Layer 3?
source and destination IP address
What was the reason for the creation and implementation of IPv6?
to relieve IPv4 address depletion
Which OSI layer sends segments to be encapsulated in an IPv4 or IPv6 packet?
transport layer
