A routing protocol’s reliability and priority are rated by what measurement? |
AD |
Which routing protocol does an exterior router use to collect data to build its routing tables? |
BGP |
Which two protocols manage neighbor discovery processes on IPv4 networks? |
ICMP and ARP |
When a router can’t determine a path to a message’s destination, where does it send the message? |
gateway of last resort |
What field in a TCP segment is used to determine if an arriving data unit exactly matches the data unit sent by the source? |
checksum |
Which OSI layer is responsible for directing data from one LAN to another? |
network layer |
At which OSI layer does IP operate? |
network layer |
Which protocol’s header would a Layer 4 device read and process? |
TCP |
What is the Internet standard MTU? |
1500 bytes |
What kind of route is created when a network administrator configures a router to use a specific path between nodes? |
static route |
AD (administrative distance) |
A number indicating a protocol’s reliability, with lower values being given higher priority. This assignment can be changed by a network administrator. |
ARP (Address Resolution Protocol) |
A core protocol in the TCP/IP suite that belongs in the Data Link layer of the OSI model. ARP works in conjunction with IPv4 to discover the MAC address of a node on the local network and to maintain a database that maps local IP addresses to MAC addresses. |
ARP table |
A database of records that maps MAC addresses to IP addresses. The ARP table is stored on a computer’s hard disk where it is used by the ARP utility to supply the MAC addresses of network nodes, given their IP addresses. |
AS (autonomous system) |
A group of networks, often on the same domain, that are operated by the same organization. |
By default, which of the following components of the composite metric are considered for Enhanced Interior Gateway Routing Protocol (EIGRP) ? |
Bandwidth and delay |
A router receives a packet with a destination address that is not found within its routing table. The router is configured to send all such packets to a specific next hop address. What is this next hop address called? |
default route |
You manage a small stub network that has a router configured with static routing. If the connection to the next hop goes down, what action will the router perform? |
It will continue to route traffic on the same path. |
Which of the following is true about the OSPF routing protocol? An OSPF maintains a network topology with only its directly connected networks. Each router is informed of the network topology up to its immediately adjacent neighbors. Each router has a partial knowledge of the network topology. Each router has complete knowledge of the network topology. |
Each router has complete knowledge of the network topology. |
If you have a small Routing Information Protocol (RIP) network of 10 hops, how will RIP prevent routing loops? |
By implementing a limit on the number of hops allowed in a path |
You are asked to install a device that will combine several connections to the Internet and provide the sum of the available network speeds to an internal network while equally sharing the data traffic among all the Internet connections. Which of the following devices are you asked to install? Wired controller Dual modem Multilayer router Multilayer switch Load balancer |
load balancer |
Which of the following statements is true about Fault tolerance?1) It is a direct result of the design of the network itself.2) It is the name of the feature that allows for dual layer 2 connections between switches.3) Enables a network to continue functioning normally in case of a partial failure. |
Statements 1 and 3 are true |
In which of the following applications can a virtual IP address be used? |
Gateway Redundancy Protocols NAT |
Network+ Chapter 4
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