正解:C
The correct command set to deny Telnet traffic from the loopback interface of router R3 to the Loopback interface of router R2 during weekend hours while allowing all other traffic at all times is depicted in Option
C: This is because the access list in Option C specifies a time-range named WEEKEND that defines the weekend hours from 00:00 on Saturday to 23:59 on Sunday. The access list then denies TCP traffic (which includes Telnet) from host 10.3.3.3 to host 10.2.2.2 eq telnet within this time range, while permitting IP traffic at all other times. References: Implementing and Operating Cisco Service Provider Network Core Technologies (SPCOR) training materials and study guides provide information on how to configure time-based ACLs which are used in this scenario.