Practice Free H12-811_V2.0-ENU Exam Online Questions
Before calling a class from a third-party library in Python code, you must import relevant modules using import or from… import statements.
- A . TRUE
- B . FALSE
The administrator configures an Eth-Trunk in LACP mode between two switches, and sets the maximum number of active links in the Eth-Trunk to 3 and the number of remaining standby links to 1. If one of the active links fails, the two switches automatically adjust the number of active links to 2 through negotiation, and the standby link remains in the standby state.
- A . TRUE
- B . FALSE
The following commands are configured on R1:
[R1] acl number 2001
[R1-acl-number-2001] rule permit source 172.16.105.0 0.0.0.255
[R1-acl-number-2001] rule deny source any
[R1-acl-number-2001] quit
[R1] ftp server acl 2001
According to the preceding configurations, only hosts with source IP addresses on network segment 172.16.105.0/24 cannot access the FTP service of R1.
- A . TRUE
- B . FALSE
The administrator performs the configuration shown in the figure on SW1. After the network is stable, the administrator pings the IP address of PC2 from PC1. The connectivity is normal. Then, the administrator runs the undo vlan 10 command on SW1. After the network is stable, the administrator pings the IP address of PC2 from PC1 again.
Which of the following statements are false about this scenario? (Choose all that apply.)
- A . SW1 accepts the data frame sent from PC1 to PC2, but discards the data frame returned from PC2 to PC1.
- B . PC1 can still ping the IP address of PC2.
- C . After receiving the data frame sent from PC1 to PC2, SW1 adds the VLAN 10 tag to the data frame and then accepts the data frame.
- D . The data frame processed inside SW1 does not carry any VLAN tag.
The figure shows the simplified topology of an enterprise campus network. On this network, the aging time of dynamic MAC address entries on switches is 300 seconds. Employee A uses PC1 to connect to the GE1/0/1 port of the switch and continuously communicates with PC3 for 10 minutes. After that, the employee disconnects the network cable and leaves the workstation. Subsequently, PC4 continues to communicate with PC3. After 30 minutes, employee B connects PC2 to GE1/0/1 of SW1, and PC2’s ARP cache table is empty. At this point, when SW1 receives an ARP request from PC2, it will search the MAC address table and forward the request packet only through GE1/0/3.
- A . TRUE
- B . FALSE
On an STP network, an administrator wants SW2 to be elected as the root bridge.
Which of the following methods can be used to achieve this goal?
- A . Set a lower port priority on SW2.
- B . Set a higher system priority on SW2.
- C . Set a lower system priority on SW2.
- D . Set a lower root path cost on SW2.
The Protocol field in a packet’s IP header identifies the upper-layer protocol that will continue to process the packet. For an ICMP packet, the Protocol field defaults to 0.
- A . TRUE
- B . FALSE
On the network shown in the figure, R1 and R2 are directly connected through a physical link. When the link is normal, R1 can ping the IP address of R2’s interface.
- A . TRUE
- B . FALSE
PC1 at 192.168.1.1/24 and PC2 at 192.168.1.102/25 are directly connected using an Ethernet cable, and the physical status of their network ports are normal. They can directly communicate with each other although their masks are different.
- A . TRUE
- B . FALSE
During VLAN planning for a campus network, VLAN IDs for different service types must be allocated consecutively, without redundancy, to prevent omissions in future allocations.
- A . TRUE
- B . FALSE