[H3CNE] H3C Network Engineer
Certification Review Guide
Question 1. Which layer of the OSI model is responsible for establishing, managing, and
terminating sessions between applications?
A) Physical
B) Data Link
C) Network
D) Session
Answer: D
Explanation: The Session layer (Layer 5) controls dialogues (sessions) between applications,
handling establishment, maintenance, and termination.
Question 2. In the TCP/IP model, which protocol provides end‑to‑end reliability and flow
control?
A) IP
B) UDP
C) TCP
D) ICMP
Answer: C
Explanation: TCP (Transmission Control Protocol) ensures reliable delivery, sequencing, and flow
control of data between hosts.
Question 3. What is the maximum length of a standard Ethernet (Category 5e) twisted‑pair
cable for 100 Mbps operation?
A) 50 m
B) 100 m
C) 200 m
D) 500 m
, [H3CNE] H3C Network Engineer
Certification Review Guide
Answer: B
Explanation: The IEEE 802.3ab standard limits Category 5e cabling to 100 meters for reliable
100 Mbps Ethernet.
Question 4. Which IPv4 address class provides the smallest number of host addresses per
network?
A) Class A
B) Class B
C) Class C
D) Class D
Answer: C
Explanation: Class C networks have a default subnet mask of 255.255.255.0, allowing 254 usable
host addresses.
Question 5. A subnet mask of 255.255.255.192 provides how many usable host addresses?
A) 30
B) 62
C) 126
D) 254
Answer: A
Explanation: 255.255.255.192 (/26) leaves 6 host bits → 2⁶‑2 = 62 usable hosts. (Correction:
Actually /26 gives 62 usable hosts; the answer should be B.)
Question 6. Which CIDR notation corresponds to the subnet mask 255.255.248.0?
A) /21
B) /22
, [H3CNE] H3C Network Engineer
Certification Review Guide
C) /23
D) /24
Answer: A
Explanation: 255.255.248.0 has 21 leading 1 bits, therefore the CIDR prefix is /21.
Question 7. In IPv6, which address type is used for nodes on the same link without requiring a
router?
A) Global Unicast
B) Link‑Local
C) Multicast
D) Anycast
Answer: B
Explanation: IPv6 Link‑Local addresses (fe80::/10) are automatically configured on interfaces
and are used for on‑link communication.
Question 8. Which IPv6 neighbor discovery message is equivalent to an ARP request in IPv4?
A) Router Advertisement
B) Router Solicitation
C) Neighbor Solicitation
D) Neighbor Advertisement
Answer: C
Explanation: Neighbor Solicitation messages are sent to discover the link‑layer address of a
neighbor, similar to ARP requests.
Question 9. In H3C Comware, which view allows you to configure system‑wide parameters such
as hostname and clock?
, [H3CNE] H3C Network Engineer
Certification Review Guide
A) User view
B) System view
C) Interface view
D) Privilege view
Answer: B
Explanation: System view (entered with `system-view`) is the configuration mode for global
system settings.
Question 10. Which command in H3C CLI saves the current running configuration to the startup
configuration file?
A) save configuration
B) write memory
C) commit
D) copy running-config startup-config
Answer: D
Explanation: `copy running-config startup-config` writes the active configuration to the
persistent startup file.
Question 11. To enable SSH access on an H3C device, which of the following must be configured
first?
A) AAA local user
B) telnet server enable
C) console line enable
D) ftp server enable
Answer: A
Certification Review Guide
Question 1. Which layer of the OSI model is responsible for establishing, managing, and
terminating sessions between applications?
A) Physical
B) Data Link
C) Network
D) Session
Answer: D
Explanation: The Session layer (Layer 5) controls dialogues (sessions) between applications,
handling establishment, maintenance, and termination.
Question 2. In the TCP/IP model, which protocol provides end‑to‑end reliability and flow
control?
A) IP
B) UDP
C) TCP
D) ICMP
Answer: C
Explanation: TCP (Transmission Control Protocol) ensures reliable delivery, sequencing, and flow
control of data between hosts.
Question 3. What is the maximum length of a standard Ethernet (Category 5e) twisted‑pair
cable for 100 Mbps operation?
A) 50 m
B) 100 m
C) 200 m
D) 500 m
, [H3CNE] H3C Network Engineer
Certification Review Guide
Answer: B
Explanation: The IEEE 802.3ab standard limits Category 5e cabling to 100 meters for reliable
100 Mbps Ethernet.
Question 4. Which IPv4 address class provides the smallest number of host addresses per
network?
A) Class A
B) Class B
C) Class C
D) Class D
Answer: C
Explanation: Class C networks have a default subnet mask of 255.255.255.0, allowing 254 usable
host addresses.
Question 5. A subnet mask of 255.255.255.192 provides how many usable host addresses?
A) 30
B) 62
C) 126
D) 254
Answer: A
Explanation: 255.255.255.192 (/26) leaves 6 host bits → 2⁶‑2 = 62 usable hosts. (Correction:
Actually /26 gives 62 usable hosts; the answer should be B.)
Question 6. Which CIDR notation corresponds to the subnet mask 255.255.248.0?
A) /21
B) /22
, [H3CNE] H3C Network Engineer
Certification Review Guide
C) /23
D) /24
Answer: A
Explanation: 255.255.248.0 has 21 leading 1 bits, therefore the CIDR prefix is /21.
Question 7. In IPv6, which address type is used for nodes on the same link without requiring a
router?
A) Global Unicast
B) Link‑Local
C) Multicast
D) Anycast
Answer: B
Explanation: IPv6 Link‑Local addresses (fe80::/10) are automatically configured on interfaces
and are used for on‑link communication.
Question 8. Which IPv6 neighbor discovery message is equivalent to an ARP request in IPv4?
A) Router Advertisement
B) Router Solicitation
C) Neighbor Solicitation
D) Neighbor Advertisement
Answer: C
Explanation: Neighbor Solicitation messages are sent to discover the link‑layer address of a
neighbor, similar to ARP requests.
Question 9. In H3C Comware, which view allows you to configure system‑wide parameters such
as hostname and clock?
, [H3CNE] H3C Network Engineer
Certification Review Guide
A) User view
B) System view
C) Interface view
D) Privilege view
Answer: B
Explanation: System view (entered with `system-view`) is the configuration mode for global
system settings.
Question 10. Which command in H3C CLI saves the current running configuration to the startup
configuration file?
A) save configuration
B) write memory
C) commit
D) copy running-config startup-config
Answer: D
Explanation: `copy running-config startup-config` writes the active configuration to the
persistent startup file.
Question 11. To enable SSH access on an H3C device, which of the following must be configured
first?
A) AAA local user
B) telnet server enable
C) console line enable
D) ftp server enable
Answer: A
