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| Section | Weight | Objectives |
|---|---|---|
| Data Communication Network Basics | 10% | - ARP, TCP/UDP principles - Campus network basics - Data forwarding process - VRP system basics and operations - Basic network concepts and architecture - OSI and TCP/IP protocol models |
| Typical Campus Networking Solution | 5% | - Campus network design and integration - End-to-end networking scenarios |
| IP Technology Basics | 25% | - IPv4 addressing, subnetting - IP routing basics and forwarding - IPv6 basics - Static routing, OSPF fundamentals |
| Data Center Network Basics | 5% | - Data center architecture overview - Basic data center networking technologies |
| Ethernet Technology Basics | 20% | - Ethernet standards and switch principles - Link aggregation and stacking technologies - VLAN, STP, RSTP principles and configuration |
| Network O&M and Troubleshooting | 10% | - Network monitoring and management tools - Fault diagnosis and troubleshooting methods |
| Network Security and Services | 15% | - ACL, NAT principles and configuration - AAA and basic security technologies - DHCP, DNS, FTP, Telnet services |
| WLAN Technology Basics | 10% | - 802.11 standards and WLAN components - Basic WLAN configuration - WLAN architecture and working principles |
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NEW QUESTION # 102
Drag and Drop Question
Assume that the IP address of GE0/0/0 on R1 is 10.0.12.1/24. Multiple commands can be used to enable OSPF on this interface. Match the commands with their configuration views.
Answer:
Explanation:
NEW QUESTION # 103
Drag and Drop Question
R1 has the following configurations:
[R1] acl number 3000
[R1-acl4-advance-3000] rule 5 permit ip source 10.0.1.0 0.0.0.1
[R1-acl4-advance-3000] rule 10 deny ip source 0.0.1.0 15.0.0.3
[R1-acl4-advance-3000] rule 15 deny ip source 10.2.1.1 0
[R1-acl4-advance-3000] rule 20 permit ip
[R1-acl4-advance-3000] quit
Match the following source IP addresses of packets with the corresponding rule IDs.
Answer:
Explanation:
Explanation:
10.0.1.1 โ rule 5
192.168.2.1 โ rule 10
12.0.1.3 โ rule 20
10.2.1.1 โ rule 15
ACL rules are matched in order from top to bottom. Rule 5 matches only the specific pattern derived from 10.0.1.0 with a small wildcard variation, so it applies to 10.0.1.1. Rule 15 is an exact match for 10.2.1.1. Rule 10 does not match any of the given source addresses based on its wildcard constraint, so those packets fall through to the final permit rule. Rule 20 therefore handles all remaining unmatched traffic.
NEW QUESTION # 104
In a wireless communication system, information is first converted into digital signals for easy circuit calculation and processing by the transmitter through source coding, and then converted into radio waves through channel coding and modulation. Which of the following parameters of a carrier are modified during the modulation process based on signal changes? (Select all that apply)
Answer: B,C,D
Explanation:
During modulation, the transmitter maps digital information onto certain physical characteristics of a carrier signal so that the information can be transmitted over the air. The three classic carrier parameters that can be modified are amplitude, frequency, and phase. Therefore, options A, B, and D are correct.
Amplitude modulation changes the strength of the carrier wave. Frequency modulation changes the oscillation rate of the carrier. Phase modulation changes the phase angle of the carrier relative to a reference. Modern wireless communication systems often combine these parameters, especially amplitude and phase, in complex digital modulation schemes such as QPSK, 16-QAM, 64-QAM, or higher-order QAM used in WLAN standards.
NEW QUESTION # 105
On the network shown in the figure, STP is enabled on all devices. The bridge priorities and MAC addresses of two switches are shown in the figure. Other parameters retain the default values.
When GE1/0/1 of SW1 fails and once the network is stable, GE1/0/2 of SW2 becomes the designated port.
Answer: B
Explanation:
SW1 is the root bridge because both switches have the same priority and SW1 has the lower MAC address. Therefore, all active ports on SW1 are designated ports. On SW2, the port connected to SW1 is selected as the root port.
When GE1/0/1 of SW1 fails, only the remaining link between SW1 and SW2 stays active. In this case, SW1 still remains the root bridge, so its connected interface remains the designated port, while SW2's corresponding interface becomes the root port. Therefore, GE1/0/2 of SW2 does not become a designated port, making the statement false.
NEW QUESTION # 106
Which of the following fields are included in an MPLS header?
Answer: A,B,D
Explanation:
An MPLS (Multiprotocol Label Switching) header includes the following fields:
Label: Identifies the MPLS path.
TTL (Time to Live): Limits the lifetime of the MPLS packet.
EXP (Experimental): Used for QoS marking. The Tos (Type of Service) field is part of the IP header, not MPLS.
NEW QUESTION # 107
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