Computer Networks: Write either True or False 1. In LTE, a mobile device may have multiple EPS bearers established: T/F 2. RIP can handle a max of 15 hops: T / F 3. In the hierarchical OSPF, area border routers run multiple instances of OSPF algorithms. T/F 4. An n-bit-CRC can detect with probability 1 any single error burst not longer than n bits. T/F 5. In random access, Carrier Sensing is a technique that guarantees no collision will happen. T/F 6. In Ethernet, due to exponential backoff, if a sender waited for T units of time before sending but experienced a collision, at the next attempt, the sender will wait for 2*T, then resends. T/F 7. ARP is Plug and Play: T/F 8. A MAC address needs to be updated through self learning when the host changes location. T/F 9. The Internet routing protocols require every provider network to advertise every path available through their AS. T/F 10. The Ethernet preamble is used to synchronize the receiver and sender clock rates. T/F Solution 1. True 2. True 3) False 4) True 5) True, it avoides the collision technique 6) False 7) True, ARP is “ plug-and-play”: nodes create their ARP tables without intervention from net administrator. Routing to another LAN 8) False, No need to update it automatically update when it takes the inputs from, the admionistrator 9) False 10) True .

1. Computer Networks: Write either True or False
1. In LTE, a mobile device may have multiple EPS bearers established: T/F
2. RIP can handle a max of 15 hops: T / F
3. In the hierarchical OSPF, area border routers run multiple instances of OSPF algorithms. T/F
4. An n-bit-CRC can detect with probability 1 any single error burst not longer than n bits. T/F
5. In random access, Carrier Sensing is a technique that guarantees no collision will happen. T/F
6. In Ethernet, due to exponential backoff, if a sender waited for T units of time before sending
but experienced a collision, at the next attempt, the sender will wait for 2*T, then resends. T/F
7. ARP is Plug and Play: T/F
8. A MAC address needs to be updated through self learning when the host changes location. T/F
9. The Internet routing protocols require every provider network to advertise every path available
through their AS. T/F
10. The Ethernet preamble is used to synchronize the receiver and sender clock rates. T/F
Solution
1. True
2. True
3) False
4) True
5) True, it avoides the collision technique
6) False
7) True, ARP is “ plug-and-play―: nodes create their ARP tables without intervention from
net administrator. Routing to another LAN
8) False, No need to update it automatically update when it takes the inputs from, the
admionistrator
9) False

2. 10) True