cyber

During STP calculation, the port cost is associated with the port bandwidth by default. Which of the following statements about the relationship between port cost and port bandwidth is true?

• A higher port bandwidth indicates a smaller port cost

• A higher port bandwidth indicates a larger port cost

• The port bandwidth is equal to the port cost

• The port cost varies randomly according to port bandwidth

If Proto of a route displayed in the routing table is OSPF, the preference of the route must be 10

• True

• False

Which of the following protocols is not a le transfer protocol?

• FTP

• TFTP

• SFTP

• HTTP packet

When a switch port receives a frame that does not carry a VLAN tag, it must add a PVID to the frame

• True

• False

Which of the following advantages is/are inter-VLAN route interworking in one-arm routing mode?

• Reduced the number of links

• Reduced the use of IP addresses

• Reduced the number of devices

• Reduced the number of entries in the routing table

Trunk interfaces can send both tagged and untagged frames

• True

• False

IEEE 802.11ac supports only the 5 GHz frequency band

• True

• False

Which of the following protocols can be used to prevent loops on a Layer 2 network with redundant links?

• VRRP

• STP

• ARP

• UDP

According to the VTY user interface conguration shown in the following gure, the user level is set to 3. [Huawei]user-interface vty 0 14 [Huawei-ui-vty0-14]acl 2000 inbound [Huawei-ui-vty0-14]user privilege level 3 [Huawei-ui-vty0-14]authentication-node password Please congure the login password (maximum length 16):huawei

• true

• false

Which of the following packets are OSPF packets?

• HELLO

• LSR

• LSU

• LSA