computers

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Can please help me, i'm stuck on thios question:-

Q) Select the two true statements from the following list.

A)In the OSI model, PDUs at layer 2 are called frames and PDUs at layer 3 are called packets.
B)In an IPv4 packet header the Time-to-Live field is 8 bits. This means that a packet can travel over a maximum of 8 hops.
C)To minimise network degradation, one large broadcast domain is better than two smaller broadcast domains.
D)In an IPv4 address, both the network portion and the host portion are needed to uniquely identify an individual host.
E)When the network portion of the destination address and the source address are identical, a gateway router is needed to forward the packet to its destination.
F)The trailer in a layer 2 PDU includes two address fields.

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    T215?

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