Huawei H12-811_V1.0 Practice Test - Questions Answers, Page 86

A floating static route is configured by assigning a higher preference value to the backup route. This ensures that the backup route (floating route) is used only when the primary route is unavailable. Lower preference values indicate higher priority.

Detailed

LSAs (Link-State Advertisements) are the fundamental OSPF messages used to convey network topology information. LSU (Link-State Update), LSR (Link-State Request), and LSACK (Link-State Acknowledgment) are all types of messages related to OSPF's operations, but 'LSA' alone is not a valid OSPF message type.

Detailed

The protocol number for TCP in the IPv4 header is 6. Since Telnet uses TCP as its transport layer protocol, the protocol field in the IPv4 header will contain the value 6.

Detailed

To accommodate 26 hosts, the subnet needs at least 30 addresses (including network and broadcast addresses). A subnet mask of 255.255.255.192 provides 64 addresses (2^6 - 2 = 62 usable addresses), which is more than enough to support 26 hosts while also leaving space for additional hosts if needed.

Detailed

OSPF (Open Shortest Path First) uses protocol number 89 at the network layer. This distinguishes OSPF packets from other protocols such as TCP (protocol number 6) and ICMP (protocol number 1) .

Detailed

The address 145.4.2.55/26 is a valid unicast address and falls within the range of usable IP addresses for a /26 subnet. The address 237.6.1.2/24 is from a reserved range, 127.3.1.4/28 is part of the loopback range (127.0.0.0/8), and 192.168.10.112/30 only provides two usable addresses, which would not allow the router to be properly configured .

Detailed

The priority (preference) of static routes can indeed be manually specified in Huawei devices. By default, static routes have a preference of 60, but this can be changed to create backup routes or prioritize certain routes over others.

Detailed

The subnet 200.200.200.200/30 allows two usable IP addresses, 200.200.200.201 and 200.200.200.202. These two addresses can communicate with each other directly, without the need for routing .

Detailed

OSPF (Open Shortest Path First) has several key advantages:

It can load balance traffic among equal-cost routes.

OSPF supports hierarchical area structures, allowing for network scalability and reduced routing table sizes.

OSPF supports strong security measures through packet authentication (MD5 or plain text).

It supports Classless Inter-Domain Routing (CIDR), allowing for more efficient IP address allocation and route aggregation.