CISCO CCNP – PRACTICE QUESTIONS AND CORRECT ANSWERS (VERIFIED ANSWERS) PLUS
RATIONALES 2026 Q&A | INSTANT DOWNLOAD PDF.
Core Domains
ArchitectureVirtualizationInfrastructureNetwork AssuranceSecurityAutomationRouting and Switching
ProtocolsWireless Technologies
Introduction
This comprehensive assessment is designed to evaluate the advanced technical proficiency required for the
Cisco Certified Network Professional certification. The exam assesses a candidate's ability to implement,
manage, and troubleshoot complex enterprise network solutions. Covering a broad spectrum of topics from
core architectural principles to advanced automation and security protocols, this test bank utilizes a
combination of theoretical inquiries and complex scenario-based questions. Each item is crafted to mirror real-
world challenges, emphasizing critical thinking and strategic decision-making in professional environments. By
completing these questions, candidates demonstrate their mastery of enterprise-level networking standards and
their readiness to operate at a senior technical level.
Section One: Questions 1–100
1. Which protocol is used by Cisco SD-Access to provide a scalable control plane for tracking endpoints in
the fabric?
A. BGP
B. LISP
C. VXLAN
D. OSPF
🟢 B. LISP
🔴 RATIONALE: LISP (Locator/ID Separation Protocol) is the control plane protocol for the SD-Access fabric. It
simplifies routing by separating the identity of an endpoint (EID) from its current location (RLOC) in the network.
, 2. In an OSPF network, which LSA type is used to describe a router's connection to a stub area from an
ASBR?
A. Type 1
B. Type 3
C. Type 5
D. Type 7
🟢 D. Type 7
🔴 RATIONALE: Type 7 LSAs are used within Not-So-Stubby Areas (NSSAs) to allow ASBRs to advertise
external routes. These are translated into Type 5 LSAs by the ABR when entering the backbone area.
3. An administrator needs to implement a mechanism to prevent loops at Layer 2 when redundant paths
exist. Which technology is the most appropriate?
A. RSTP
B. VTP
C. HSRP
D. VRRP
🟢 A. RSTP
🔴 RATIONALE: Rapid Spanning Tree Protocol (RSTP) is designed to prevent Layer 2 loops by managing
redundant links and ensuring only one active path exists between any two nodes, with faster convergence than
original STP.
4. When configuring BGP, what is the default behavior regarding the weight attribute for paths learned from a
peer?
A. 0
B. 100
,C. 32768
D. 65535
🟢 A. 0
🔴 RATIONALE: Weight is a Cisco-proprietary attribute. For routes learned from other BGP peers, the default
weight is 0. Routes originated locally on the router have a default weight of 32768.
5. Which JSON data type is represented as an ordered list of values enclosed in square brackets?
A. Object
B. Number
C. Array
D. String
🟢 C. Array
🔴 RATIONALE: In JSON, an array is an ordered collection of values starting with [ and ending with ]. This is a
foundational concept in network automation and API interactions.
6. A network engineer is troubleshooting an EIGRP neighbor adjacency issue. Both routers are in the same
subnet and K-values match, but the adjacency fails. What is a likely cause?
A. Mismatched MTU
B. Mismatched Autonomous System number
C. Different Hello timers
D. Mismatched Router IDs
🟢 B. Mismatched Autonomous System number
🔴 RATIONALE: For EIGRP neighbors to form an adjacency, they must be configured with the same
Autonomous System (AS) number. Unlike OSPF, EIGRP hello timers do not need to match for adjacency.
, 7. Which feature allows a Cisco switch to protect against an unauthorized DHCP server being plugged into
the network?
A. Dynamic ARP Inspection
B. Port Security
C. DHCP Snooping
D. BPDU Guard
🟢 C. DHCP Snooping
🔴 RATIONALE: DHCP Snooping acts like a firewall between untrusted hosts and trusted DHCP servers. It
validates DHCP messages and filters out unauthorized responses from untrusted ports.
8. What is the primary purpose of the VXLAN Network Identifier (VNI)?
A. To identify the physical interface
B. To identify the Layer 2 segment in a VXLAN tunnel
C. To tag packets for Quality of Service
D. To define the BGP community string
🟢 B. To identify the Layer 2 segment in a VXLAN tunnel
🔴 RATIONALE: The VNI is a 24-bit field in the VXLAN header that identifies a specific Layer 2 segment
(broadcast domain), allowing for up to 16 million unique segments.
9. Under the IEEE 802.11 standard, which frequency band offers more non-overlapping channels for
wireless communication?
A. 2.4 GHz
B. 900 MHz
C. 5 GHz
D. 433 MHz
RATIONALES 2026 Q&A | INSTANT DOWNLOAD PDF.
Core Domains
ArchitectureVirtualizationInfrastructureNetwork AssuranceSecurityAutomationRouting and Switching
ProtocolsWireless Technologies
Introduction
This comprehensive assessment is designed to evaluate the advanced technical proficiency required for the
Cisco Certified Network Professional certification. The exam assesses a candidate's ability to implement,
manage, and troubleshoot complex enterprise network solutions. Covering a broad spectrum of topics from
core architectural principles to advanced automation and security protocols, this test bank utilizes a
combination of theoretical inquiries and complex scenario-based questions. Each item is crafted to mirror real-
world challenges, emphasizing critical thinking and strategic decision-making in professional environments. By
completing these questions, candidates demonstrate their mastery of enterprise-level networking standards and
their readiness to operate at a senior technical level.
Section One: Questions 1–100
1. Which protocol is used by Cisco SD-Access to provide a scalable control plane for tracking endpoints in
the fabric?
A. BGP
B. LISP
C. VXLAN
D. OSPF
🟢 B. LISP
🔴 RATIONALE: LISP (Locator/ID Separation Protocol) is the control plane protocol for the SD-Access fabric. It
simplifies routing by separating the identity of an endpoint (EID) from its current location (RLOC) in the network.
, 2. In an OSPF network, which LSA type is used to describe a router's connection to a stub area from an
ASBR?
A. Type 1
B. Type 3
C. Type 5
D. Type 7
🟢 D. Type 7
🔴 RATIONALE: Type 7 LSAs are used within Not-So-Stubby Areas (NSSAs) to allow ASBRs to advertise
external routes. These are translated into Type 5 LSAs by the ABR when entering the backbone area.
3. An administrator needs to implement a mechanism to prevent loops at Layer 2 when redundant paths
exist. Which technology is the most appropriate?
A. RSTP
B. VTP
C. HSRP
D. VRRP
🟢 A. RSTP
🔴 RATIONALE: Rapid Spanning Tree Protocol (RSTP) is designed to prevent Layer 2 loops by managing
redundant links and ensuring only one active path exists between any two nodes, with faster convergence than
original STP.
4. When configuring BGP, what is the default behavior regarding the weight attribute for paths learned from a
peer?
A. 0
B. 100
,C. 32768
D. 65535
🟢 A. 0
🔴 RATIONALE: Weight is a Cisco-proprietary attribute. For routes learned from other BGP peers, the default
weight is 0. Routes originated locally on the router have a default weight of 32768.
5. Which JSON data type is represented as an ordered list of values enclosed in square brackets?
A. Object
B. Number
C. Array
D. String
🟢 C. Array
🔴 RATIONALE: In JSON, an array is an ordered collection of values starting with [ and ending with ]. This is a
foundational concept in network automation and API interactions.
6. A network engineer is troubleshooting an EIGRP neighbor adjacency issue. Both routers are in the same
subnet and K-values match, but the adjacency fails. What is a likely cause?
A. Mismatched MTU
B. Mismatched Autonomous System number
C. Different Hello timers
D. Mismatched Router IDs
🟢 B. Mismatched Autonomous System number
🔴 RATIONALE: For EIGRP neighbors to form an adjacency, they must be configured with the same
Autonomous System (AS) number. Unlike OSPF, EIGRP hello timers do not need to match for adjacency.
, 7. Which feature allows a Cisco switch to protect against an unauthorized DHCP server being plugged into
the network?
A. Dynamic ARP Inspection
B. Port Security
C. DHCP Snooping
D. BPDU Guard
🟢 C. DHCP Snooping
🔴 RATIONALE: DHCP Snooping acts like a firewall between untrusted hosts and trusted DHCP servers. It
validates DHCP messages and filters out unauthorized responses from untrusted ports.
8. What is the primary purpose of the VXLAN Network Identifier (VNI)?
A. To identify the physical interface
B. To identify the Layer 2 segment in a VXLAN tunnel
C. To tag packets for Quality of Service
D. To define the BGP community string
🟢 B. To identify the Layer 2 segment in a VXLAN tunnel
🔴 RATIONALE: The VNI is a 24-bit field in the VXLAN header that identifies a specific Layer 2 segment
(broadcast domain), allowing for up to 16 million unique segments.
9. Under the IEEE 802.11 standard, which frequency band offers more non-overlapping channels for
wireless communication?
A. 2.4 GHz
B. 900 MHz
C. 5 GHz
D. 433 MHz
