QUESTION 277
If there is no security policy configured in the inter-zone of the firewall, or when searching for security policies, all the security policies are not hit, then which of the following default packet filtering action of the inter-zone is executed by default?

QUESTION 278
Regarding delay and jitter, which of the following description is correct? (Multiple choice)

QUESTION 279
Segment Routing encodes the segment sequence representing the forwarding path in the header of the data packet, transmits it along with the data packet, and parses the segment sequence after receiving the data packet at the receiving end. If the segment ID at the top of the segment sequence is the current node, pop up the ID and proceed to the next step. If not, use the ECMP (Equal Cost Multiple Path) method to forward the data packet to the next node.

QUESTION 280
What is the length of the basic IPv6 header Byte?

QUESTION 281
Which three information security systems are interactive? (Multiple choice)

QUESTION 282
Which field in the IPv6 packet header can be used for QoS?

QUESTION 283
On Huawei routers, the value of the static routing protocol priority by default is?

QUESTION 284
The backup port in RSTP can replace the failed root port.

QUESTION 285
As shown in the figure, static NAT commands are deployed on router R1. When the PC accesses the Internet, the destination address in the data packet will not change.

QUESTION 286
A gateway must be configured for a host to communicate with other hosts.

QUESTION 287
Which elements can NAPT convert?

QUESTION 288
When using FTP for file transfer, how many TCP connections will be established?

QUESTION 289
The network management workstation manages network devices through the SNMP protocol. When an abnormality occurs in the managed device, what kind of SNMP message will the network management workstation receive?

QUESTION 290
The configuration information of a certain port of the switch is shown in the figure, so when this port sends data frames carrying which VLANs, the VLAN TAG is stripped?

QUESTION 291
The host uses a stateless address auto-configuration scheme to obtain an IPv6 address, and cannot obtain DNS server address information.

QUESTION 292
The election of the root switch in STP only compares the switch priority, while in RSTP, the switch priority and MAC address are compared at the same time.

QUESTION 293
Which of the following OSPF protocol packets can ensure the reliability of LSA update?

QUESTION 294
After the stack splits, the side that loses the MAD election will be in ().

QUESTION 295
Which of the following agreements is the PPP agreement composed of? (Multiple choice)

QUESTION 296
The LDP session is used to exchange messages such as label mapping and release between LSRs. Which of the descriptions about the process of establishing an LDP session is correct? (Multiple choice)

QUESTION 297
UDP has a sliding window mechanism to control the speed of data transmission.