Computer Networking
Which statements are true regarding ICMP packets?1. ICMP guarantees datagram delivery.2. ICMP can provide hosts with information about network problems.3. ICMP is encapsulated within IP datagrams.4. ICMP is encapsulated within UDP datagrams.

2 and 3
1 and 4
All of these
1 only

ANSWER DOWNLOAD EXAMIANS APP

Computer Networking
X.21 is

None of these
network access standard for connecting stations to a circuit-switched network
a method access control technique for multiple-access transmission media
a method of determining which device has access to the transmission medium at any time
a very common bit-oriented data link protocol issued by ISO

ANSWER DOWNLOAD EXAMIANS APP
MORE MCQ ON Computer Networking