HCNA

H12-721 HCIP-Security-CISN

Use original educational practice content, randomized simulator sessions, score history and explanation review for H12-721.

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Las preguntas de práctica se proporcionan en inglés para mantenerse cerca del idioma utilizado habitualmente en las certificaciones IT.

QZ9 es una plataforma de formación independiente. Todas las preguntas de práctica son originales y creadas solo con fines educativos. No proporcionamos contenido real de examen ni contenido no autorizado. Microsoft, AWS, Cisco, CompTIA, PMI y otras marcas pertenecen a sus respectivos propietarios.

ProveedorHCNA

CodeH12-721

Duration90 Minutes

Questions240 refs

Datos del examen

Preparación basada en objetivos, sin contenido no autorizado

Certification metadata is preserved from the legacy QZ9 catalog. Questions remain English-only.

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Simulador de examen

Las preguntas de práctica se proporcionan en inglés para mantenerse cerca del idioma utilizado habitualmente en las certificaciones IT.

Pregunta 1

DDos attacks work through the network to the target (usually a server, such as DNS server, WEB server) and sends a small amount of abnormal packets of non-traffic, so that the attacked server parses the message, causing the system to crash or become busy.

Pregunta 2

In the TCP / IP protocol, TCP protocol provides reliable connectivity service using three-way handshake to achieve. The first handshake: establish a connection, the client sends a SYN packet (SYN = J) to the server, and enter SYN_SENT state, waiting for the server to confirm. Second handshake: the server receives a SYN packet and must issue an ACK packet (ACK = ) to confirm the client's SYN packet, but he is sending a SYN packet (SYN = K), ie, SYN-ACK packets, the server enters SYN_RCVD state. Third handshake: the client receives the SYN-ACK packet, the server sends an acknowledgment packet ACK (SYN = ASK = ), this package has been sent, the client and server enter into the ESTABLISHED state, completing the three-way handshake. About three-way handshake during the three parameters, which of the following statements is correct?

Pregunta 3

The IKE first stage main mode negotiation process includes the following information? (Choose three answers)

Pregunta 4

In-Band management and port management control information and business information is transmitted on the same channel.

Pregunta 5

ESP verifies only the IP payload in NAT traversal, but the ESP port information will be encrypted causing the layer 4 information to be unusable with PAT. Using the IPsec NAT transparency feature can solve this problem, the ESP packet is encapsulated in a UDP header and contains the information necessary to enable PAT to work.