Which OSI Layer is responsible for path determination?
Which part(s) of an IP address is used by the router for path determination?
B. Network and client
C. Network, subnetwork, and host
D. Network, subnetwork, host, and subnet mask
What best describes the difference between a routed protocol versus a routing protocol?
A. Routed protocols are used between routers to maintain tables while routing protocols are used to carry user data.
B. Routed protocols use distance vector algorithms while routing protocols use link-state algorithms.
C. Routed protocols are used to carry user data while routing protocols maintain tables.
D. Routed protocols use dynamic addressing while routing protocols use static addressing.
What is one advantage of dynamic routing?
A. Takes little network overhead and reduces network overhead traffic
B. Reduces unauthorized break-ins as security is tight
D. Requires very little bandwidth to operate efficiently
What is one disadvantage of static routing?
A. Requires a name server on each network
B. Routing of data stops while routers exchange routing tables
C. The network administrator must manually update the routing table whenever a topology change occurs
D. Tends to reveal everything known about an internetwork
What is one disadvantage of dynamic routing?
A. Requires lots of active network administrator management
D. Cannot compensate for network failures so crashes can be a recurring problem
What is a network with only one path to a router called?
A. Static network
B. Dynamic network
C. Entity network
Which metrics are commonly used by routers to evaluate a path?
A. EMI load, SDLC connections, deterioration rate
C. Distance, hub count, SN ratio
D. Signal count, loss ratio, noise
Which metric measures the passage of a data packet through a router?
Which best describes convergence?
A. When messages simultaneously reach a router and a collision occurs
B. When several routers simultaneously route packets along the same path
C. When all routers in an internetwork have the same knowledge of the structure and topology of the internetwork
D. When several messages are being sent to the same destination
Question 11: *************************************
What do distance vector algorithms require of routers?
A. Default routes for major internetwork nodes in case of corrupted routing tables
B. Periodically send its routing table to its neighbors
C. Fast response times and ample memory
Which routers exchange information when using a distance-vector routing protocol?
B. All in network
C. All in subnetwork
Question 13: ************************
Which term describes the situation where packets never reach their destination but instead cycle repeatedly through the same group of network nodes?
A. Split horizon
B. End to end messaging
D. Routing loop
How can the count to infinity problem be prevented?
A. By using routing loops
B. By defining a minimum hop count
C. By increasing router memory
Why are hold-down timers useful?
A. They help prevent a router from immediately using an alternate route that includes the failed route
B. They force all routers in a segment to synchronize switching operations
C. They reduce the amount of network traffic during high traffic periods
D. They provide a mechanism for bypassing failed sections of the network
Which routing protocol maintains a complex database of topology information and uses link-state advertisements (LSAs)?
Question 17: *****************************
Which best describes link-state algorithms?
A. Enables each router to know the exact topology of the entire participating internetwork.
B. Requires minimal router CPU utilization.
C. Determines distance, direction and reliability to any link on the internetwork.
D. Uses little network overhead and reduces overall traffic.
Question 18: ***********************
Which protocol is a link-state routing protocol?
How are link-state routing updates triggered?
A. By timers
C. By protocol changes
D. By changing the NIC
What will happen if routers have different sets of LSAs?
A. A check sum procedure is initiated and faulty routing tables repaired.
B. Routes become unreachable because routers disagree about a link.
C. A comparison is forced and subsequent convergence on a single routing table occurs.
D. A broadcast message is sent with the master copy of the routing table to all routers.
Which protocol is a hybrid routing protocol?
What does a router use to identify the destination network (LAN) of a packet within an internetwork?
A. MAC address
B. Port address
C. SPX address
Which kind of route is set when the next hop is not explicitly listed in the routing table?
Information regarding routes has been received on a router through interface A. Which routing technique will prevent this information from exiting on the router through the same interface A?
A. Dynamic routing
C. Static routing
D. Hold down timers