Layer 6 of the OSI model is responsible for which of the following functions?

About the sliding window TCP ( ) action, which of the following description is the error? Multiple selection

Assuming three routers (A, B, and C) uses BGP as the routing protocol. A sends Update packets to B and B sends the Update packets to C.
Which of the following attributes meet the following two conditions?
(1) A can select whether to carry this attribute in Update packets.
(2) If B receives an Update packet carrying this attribute, B still advertises the Update packet to C although B cannot identify this attribute. Then, Router C may identify and use this attribute.

You are performing troubleshooting on a LAN and suspect that the error is caused by mismatching working modes.
Which of the following switch interface errors indicate that the working modes of the 10/100/1000 Ethernet interfaces do not match?

The Next Header field only exists in the basic header of an IPv6 packet, and its function is only to indicate whether the IPv6 packet has an extension header.