BER encoding of Unsigned32 and BITS

["chum chum"<chum@noos.fr>]

Hello,

I read the RFC 3084 (COPS-PR) and find in the example of BER encoding for EDP that:

02 01 08          :ipv4FilterIndex/Unsigned32/Value = 8

However, in the book "Understanding SNMP MIBs", page 396, Unsigned32 has a tag encoding of 0x42, not 0x02. Could someone tell me which one is correct?

How about BER encoding for BITS?
For example, in RFC 3317 (COPS-PR for DiffServ)

DsIfAlgDropCapsEntry ::= SEQUENCE {
        dsIfAlgDropCapsType                BITS,
        dsIfAlgDropCapsMQCount             Unsigned32
}

I want to encode the following:

dsIfAlgDropCapsType/BITS/value = 0011100 (binary)
Tag value = ??
length = ??
value = ??

Thank you very much,
C.