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Enterprise Routing, Switching & SD-WAN (Cisco/Juniper) (Computer Science) Solved Questions & Notes (2026) - Apex Rankers

General Competitive Exams > Computer Science > Enterprise Routing, Switching & SD-WAN (Cisco/Juniper)

50 Total Solved Questions
~75 mins Estimated Reading Time
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Enterprise Routing, Switching & SD-WAN (Cisco/Juniper)

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Q. 1 Computer Aptitude Test
Difficulty: medium (1 Mark)
In enterprise network architecture: In enterprise routing architecture, how is Border Gateway Protocol (BGP) distinguished from Open Shortest Path First (OSPF)?
A
BGP is an Exterior Gateway Protocol (EGP) using path-vector metrics for inter-AS routing, while OSPF is an Interior Gateway Protocol (IGP) using link-state metrics
✓ Correct
B
BGP operates exclusively at the Data Link Layer (Layer 2) using MAC addresses
C
OSPF can only route between different international internet service providers
D
BGP is limited to a maximum hop count of 15 like RIP
💡 Step-by-Step Explanation & Concept Rationale
BGP manages routing between independent Autonomous Systems (AS) across the internet/WAN, whereas OSPF optimizes intra-domain enterprise routing.
Q. 2 Computer Aptitude Test
Difficulty: hard (1 Mark)
Under financial sector cybersecurity and IT governance frameworks, in enterprise routing architecture, how is Border Gateway Protocol (BGP) distinguished from Open Shortest Path First (OSPF)?
A
OSPF can only route between different international internet service providers
B
BGP is an Exterior Gateway Protocol (EGP) using path-vector metrics for inter-AS routing, while OSPF is an Interior Gateway Protocol (IGP) using link-state metrics
✓ Correct
C
BGP is limited to a maximum hop count of 15 like RIP
D
BGP operates exclusively at the Data Link Layer (Layer 2) using MAC addresses
💡 Step-by-Step Explanation & Concept Rationale
BGP manages routing between independent Autonomous Systems (AS) across the internet/WAN, whereas OSPF optimizes intra-domain enterprise routing.
Q. 3 Computer Aptitude Test
Difficulty: hard (1 Mark)
A Joint Director (IS&TD) overseeing network infrastructure evaluates: In enterprise routing architecture, how is Border Gateway Protocol (BGP) distinguished from Open Shortest Path First (OSPF)?
A
BGP is limited to a maximum hop count of 15 like RIP
B
BGP operates exclusively at the Data Link Layer (Layer 2) using MAC addresses
C
BGP is an Exterior Gateway Protocol (EGP) using path-vector metrics for inter-AS routing, while OSPF is an Interior Gateway Protocol (IGP) using link-state metrics
✓ Correct
D
OSPF can only route between different international internet service providers
💡 Step-by-Step Explanation & Concept Rationale
BGP manages routing between independent Autonomous Systems (AS) across the internet/WAN, whereas OSPF optimizes intra-domain enterprise routing.
Q. 4 Computer Aptitude Test
Difficulty: medium (1 Mark)
Regarding Cisco/Juniper enterprise routing and switching standards: In enterprise routing architecture, how is Border Gateway Protocol (BGP) distinguished from Open Shortest Path First (OSPF)?
A
BGP operates exclusively at the Data Link Layer (Layer 2) using MAC addresses
B
OSPF can only route between different international internet service providers
C
BGP is limited to a maximum hop count of 15 like RIP
D
BGP is an Exterior Gateway Protocol (EGP) using path-vector metrics for inter-AS routing, while OSPF is an Interior Gateway Protocol (IGP) using link-state metrics
✓ Correct
💡 Step-by-Step Explanation & Concept Rationale
BGP manages routing between independent Autonomous Systems (AS) across the internet/WAN, whereas OSPF optimizes intra-domain enterprise routing.
Q. 5 Computer Aptitude Test
Difficulty: hard (1 Mark)
In next-generation firewall and perimeter defense engineering, in enterprise routing architecture, how is Border Gateway Protocol (BGP) distinguished from Open Shortest Path First (OSPF)?
A
BGP is an Exterior Gateway Protocol (EGP) using path-vector metrics for inter-AS routing, while OSPF is an Interior Gateway Protocol (IGP) using link-state metrics
✓ Correct
B
OSPF can only route between different international internet service providers
C
BGP is limited to a maximum hop count of 15 like RIP
D
BGP operates exclusively at the Data Link Layer (Layer 2) using MAC addresses
💡 Step-by-Step Explanation & Concept Rationale
BGP manages routing between independent Autonomous Systems (AS) across the internet/WAN, whereas OSPF optimizes intra-domain enterprise routing.
Q. 6 Computer Aptitude Test
Difficulty: hard (1 Mark)
Under SOC operations and NIST incident response guidelines: In enterprise routing architecture, how is Border Gateway Protocol (BGP) distinguished from Open Shortest Path First (OSPF)?
A
BGP is limited to a maximum hop count of 15 like RIP
B
BGP is an Exterior Gateway Protocol (EGP) using path-vector metrics for inter-AS routing, while OSPF is an Interior Gateway Protocol (IGP) using link-state metrics
✓ Correct
C
BGP operates exclusively at the Data Link Layer (Layer 2) using MAC addresses
D
OSPF can only route between different international internet service providers
💡 Step-by-Step Explanation & Concept Rationale
BGP manages routing between independent Autonomous Systems (AS) across the internet/WAN, whereas OSPF optimizes intra-domain enterprise routing.
Q. 7 Computer Aptitude Test
Difficulty: medium (1 Mark)
Which architecture best delivers zero-trust security when considering: in enterprise routing architecture, how is Border Gateway Protocol (BGP) distinguished from Open Shortest Path First (OSPF)?
A
BGP operates exclusively at the Data Link Layer (Layer 2) using MAC addresses
B
OSPF can only route between different international internet service providers
C
BGP is an Exterior Gateway Protocol (EGP) using path-vector metrics for inter-AS routing, while OSPF is an Interior Gateway Protocol (IGP) using link-state metrics
✓ Correct
D
BGP is limited to a maximum hop count of 15 like RIP
💡 Step-by-Step Explanation & Concept Rationale
BGP manages routing between independent Autonomous Systems (AS) across the internet/WAN, whereas OSPF optimizes intra-domain enterprise routing.
Q. 8 Computer Aptitude Test
Difficulty: hard (1 Mark)
During enterprise disaster recovery and business continuity planning: In enterprise routing architecture, how is Border Gateway Protocol (BGP) distinguished from Open Shortest Path First (OSPF)?
A
OSPF can only route between different international internet service providers
B
BGP is limited to a maximum hop count of 15 like RIP
C
BGP operates exclusively at the Data Link Layer (Layer 2) using MAC addresses
D
BGP is an Exterior Gateway Protocol (EGP) using path-vector metrics for inter-AS routing, while OSPF is an Interior Gateway Protocol (IGP) using link-state metrics
✓ Correct
💡 Step-by-Step Explanation & Concept Rationale
BGP manages routing between independent Autonomous Systems (AS) across the internet/WAN, whereas OSPF optimizes intra-domain enterprise routing.
Q. 9 Computer Aptitude Test
Difficulty: medium (1 Mark)
In cryptographic infrastructure and public key management: In enterprise routing architecture, how is Border Gateway Protocol (BGP) distinguished from Open Shortest Path First (OSPF)?
A
BGP is an Exterior Gateway Protocol (EGP) using path-vector metrics for inter-AS routing, while OSPF is an Interior Gateway Protocol (IGP) using link-state metrics
✓ Correct
B
BGP is limited to a maximum hop count of 15 like RIP
C
BGP operates exclusively at the Data Link Layer (Layer 2) using MAC addresses
D
OSPF can only route between different international internet service providers
💡 Step-by-Step Explanation & Concept Rationale
BGP manages routing between independent Autonomous Systems (AS) across the internet/WAN, whereas OSPF optimizes intra-domain enterprise routing.
Q. 10 Computer Aptitude Test
Difficulty: hard (1 Mark)
From an IT operations and ISO/IEC 27001 compliance viewpoint: In enterprise routing architecture, how is Border Gateway Protocol (BGP) distinguished from Open Shortest Path First (OSPF)?
A
BGP operates exclusively at the Data Link Layer (Layer 2) using MAC addresses
B
BGP is an Exterior Gateway Protocol (EGP) using path-vector metrics for inter-AS routing, while OSPF is an Interior Gateway Protocol (IGP) using link-state metrics
✓ Correct
C
OSPF can only route between different international internet service providers
D
BGP is limited to a maximum hop count of 15 like RIP
💡 Step-by-Step Explanation & Concept Rationale
BGP manages routing between independent Autonomous Systems (AS) across the internet/WAN, whereas OSPF optimizes intra-domain enterprise routing.
Q. 11 Computer Aptitude Test
Difficulty: medium (1 Mark)
In enterprise network architecture: What is the core operational principle of Multi-Protocol Label Switching (MPLS) in enterprise financial backbones?
A
Encrypting all network traffic using 56-bit DES keys
B
Replacing all physical fiber optic cables with wireless bluetooth signals
C
Forwarding network packets using short fixed-length labels instead of performing complex IP routing table lookups at every hop
✓ Correct
D
Eliminating router memory hardware entirely from data centers
💡 Step-by-Step Explanation & Concept Rationale
MPLS attaches 32-bit labels to packets, enabling fast hardware-based label switching, traffic engineering, and enterprise VPN segregation.
Q. 12 Computer Aptitude Test
Difficulty: hard (1 Mark)
Under financial sector cybersecurity and IT governance frameworks, what is the core operational principle of Multi-Protocol Label Switching (MPLS) in enterprise financial backbones?
A
Replacing all physical fiber optic cables with wireless bluetooth signals
B
Eliminating router memory hardware entirely from data centers
C
Encrypting all network traffic using 56-bit DES keys
D
Forwarding network packets using short fixed-length labels instead of performing complex IP routing table lookups at every hop
✓ Correct
💡 Step-by-Step Explanation & Concept Rationale
MPLS attaches 32-bit labels to packets, enabling fast hardware-based label switching, traffic engineering, and enterprise VPN segregation.
Q. 13 Computer Aptitude Test
Difficulty: hard (1 Mark)
A Joint Director (IS&TD) overseeing network infrastructure evaluates: What is the core operational principle of Multi-Protocol Label Switching (MPLS) in enterprise financial backbones?
A
Forwarding network packets using short fixed-length labels instead of performing complex IP routing table lookups at every hop
✓ Correct
B
Eliminating router memory hardware entirely from data centers
C
Encrypting all network traffic using 56-bit DES keys
D
Replacing all physical fiber optic cables with wireless bluetooth signals
💡 Step-by-Step Explanation & Concept Rationale
MPLS attaches 32-bit labels to packets, enabling fast hardware-based label switching, traffic engineering, and enterprise VPN segregation.
Q. 14 Computer Aptitude Test
Difficulty: medium (1 Mark)
Regarding Cisco/Juniper enterprise routing and switching standards: What is the core operational principle of Multi-Protocol Label Switching (MPLS) in enterprise financial backbones?
A
Encrypting all network traffic using 56-bit DES keys
B
Forwarding network packets using short fixed-length labels instead of performing complex IP routing table lookups at every hop
✓ Correct
C
Replacing all physical fiber optic cables with wireless bluetooth signals
D
Eliminating router memory hardware entirely from data centers
💡 Step-by-Step Explanation & Concept Rationale
MPLS attaches 32-bit labels to packets, enabling fast hardware-based label switching, traffic engineering, and enterprise VPN segregation.
Q. 15 Computer Aptitude Test
Difficulty: hard (1 Mark)
In next-generation firewall and perimeter defense engineering, what is the core operational principle of Multi-Protocol Label Switching (MPLS) in enterprise financial backbones?
A
Replacing all physical fiber optic cables with wireless bluetooth signals
B
Eliminating router memory hardware entirely from data centers
C
Forwarding network packets using short fixed-length labels instead of performing complex IP routing table lookups at every hop
✓ Correct
D
Encrypting all network traffic using 56-bit DES keys
💡 Step-by-Step Explanation & Concept Rationale
MPLS attaches 32-bit labels to packets, enabling fast hardware-based label switching, traffic engineering, and enterprise VPN segregation.
Q. 16 Computer Aptitude Test
Difficulty: hard (1 Mark)
Under SOC operations and NIST incident response guidelines: What is the core operational principle of Multi-Protocol Label Switching (MPLS) in enterprise financial backbones?
A
Eliminating router memory hardware entirely from data centers
B
Encrypting all network traffic using 56-bit DES keys
C
Replacing all physical fiber optic cables with wireless bluetooth signals
D
Forwarding network packets using short fixed-length labels instead of performing complex IP routing table lookups at every hop
✓ Correct
💡 Step-by-Step Explanation & Concept Rationale
MPLS attaches 32-bit labels to packets, enabling fast hardware-based label switching, traffic engineering, and enterprise VPN segregation.
Q. 17 Computer Aptitude Test
Difficulty: medium (1 Mark)
Which architecture best delivers zero-trust security when considering: what is the core operational principle of Multi-Protocol Label Switching (MPLS) in enterprise financial backbones?
A
Forwarding network packets using short fixed-length labels instead of performing complex IP routing table lookups at every hop
✓ Correct
B
Encrypting all network traffic using 56-bit DES keys
C
Replacing all physical fiber optic cables with wireless bluetooth signals
D
Eliminating router memory hardware entirely from data centers
💡 Step-by-Step Explanation & Concept Rationale
MPLS attaches 32-bit labels to packets, enabling fast hardware-based label switching, traffic engineering, and enterprise VPN segregation.
Q. 18 Computer Aptitude Test
Difficulty: hard (1 Mark)
During enterprise disaster recovery and business continuity planning: What is the core operational principle of Multi-Protocol Label Switching (MPLS) in enterprise financial backbones?
A
Replacing all physical fiber optic cables with wireless bluetooth signals
B
Forwarding network packets using short fixed-length labels instead of performing complex IP routing table lookups at every hop
✓ Correct
C
Eliminating router memory hardware entirely from data centers
D
Encrypting all network traffic using 56-bit DES keys
💡 Step-by-Step Explanation & Concept Rationale
MPLS attaches 32-bit labels to packets, enabling fast hardware-based label switching, traffic engineering, and enterprise VPN segregation.
Q. 19 Computer Aptitude Test
Difficulty: medium (1 Mark)
In cryptographic infrastructure and public key management: What is the core operational principle of Multi-Protocol Label Switching (MPLS) in enterprise financial backbones?
A
Eliminating router memory hardware entirely from data centers
B
Encrypting all network traffic using 56-bit DES keys
C
Forwarding network packets using short fixed-length labels instead of performing complex IP routing table lookups at every hop
✓ Correct
D
Replacing all physical fiber optic cables with wireless bluetooth signals
💡 Step-by-Step Explanation & Concept Rationale
MPLS attaches 32-bit labels to packets, enabling fast hardware-based label switching, traffic engineering, and enterprise VPN segregation.
Q. 20 Computer Aptitude Test
Difficulty: hard (1 Mark)
From an IT operations and ISO/IEC 27001 compliance viewpoint: What is the core operational principle of Multi-Protocol Label Switching (MPLS) in enterprise financial backbones?
A
Encrypting all network traffic using 56-bit DES keys
B
Replacing all physical fiber optic cables with wireless bluetooth signals
C
Eliminating router memory hardware entirely from data centers
D
Forwarding network packets using short fixed-length labels instead of performing complex IP routing table lookups at every hop
✓ Correct
💡 Step-by-Step Explanation & Concept Rationale
MPLS attaches 32-bit labels to packets, enabling fast hardware-based label switching, traffic engineering, and enterprise VPN segregation.
Q. 21 Computer Aptitude Test
Difficulty: medium (1 Mark)
In enterprise network architecture: In modern enterprise WAN engineering, what is the primary advantage of Software-Defined WAN (SD-WAN)?
A
Dynamic path selection and centralized policy orchestration across heterogeneous transports (MPLS, Broadband, 5G) with end-to-end encryption
✓ Correct
B
Requiring manual command-line configuration on every single branch router individually
C
Disabling all QoS traffic prioritization for video and voice calls
D
Restricting WAN communication exclusively to local area network subnets
💡 Step-by-Step Explanation & Concept Rationale
SD-WAN centralizes control plane management, optimizes application performance over multiple transport links, and enhances security.
Q. 22 Computer Aptitude Test
Difficulty: hard (1 Mark)
Under financial sector cybersecurity and IT governance frameworks, in modern enterprise WAN engineering, what is the primary advantage of Software-Defined WAN (SD-WAN)?
A
Disabling all QoS traffic prioritization for video and voice calls
B
Dynamic path selection and centralized policy orchestration across heterogeneous transports (MPLS, Broadband, 5G) with end-to-end encryption
✓ Correct
C
Restricting WAN communication exclusively to local area network subnets
D
Requiring manual command-line configuration on every single branch router individually
💡 Step-by-Step Explanation & Concept Rationale
SD-WAN centralizes control plane management, optimizes application performance over multiple transport links, and enhances security.
Q. 23 Computer Aptitude Test
Difficulty: hard (1 Mark)
A Joint Director (IS&TD) overseeing network infrastructure evaluates: In modern enterprise WAN engineering, what is the primary advantage of Software-Defined WAN (SD-WAN)?
A
Restricting WAN communication exclusively to local area network subnets
B
Requiring manual command-line configuration on every single branch router individually
C
Dynamic path selection and centralized policy orchestration across heterogeneous transports (MPLS, Broadband, 5G) with end-to-end encryption
✓ Correct
D
Disabling all QoS traffic prioritization for video and voice calls
💡 Step-by-Step Explanation & Concept Rationale
SD-WAN centralizes control plane management, optimizes application performance over multiple transport links, and enhances security.
Q. 24 Computer Aptitude Test
Difficulty: medium (1 Mark)
Regarding Cisco/Juniper enterprise routing and switching standards: In modern enterprise WAN engineering, what is the primary advantage of Software-Defined WAN (SD-WAN)?
A
Requiring manual command-line configuration on every single branch router individually
B
Disabling all QoS traffic prioritization for video and voice calls
C
Restricting WAN communication exclusively to local area network subnets
D
Dynamic path selection and centralized policy orchestration across heterogeneous transports (MPLS, Broadband, 5G) with end-to-end encryption
✓ Correct
💡 Step-by-Step Explanation & Concept Rationale
SD-WAN centralizes control plane management, optimizes application performance over multiple transport links, and enhances security.
Q. 25 Computer Aptitude Test
Difficulty: hard (1 Mark)
In next-generation firewall and perimeter defense engineering, in modern enterprise WAN engineering, what is the primary advantage of Software-Defined WAN (SD-WAN)?
A
Dynamic path selection and centralized policy orchestration across heterogeneous transports (MPLS, Broadband, 5G) with end-to-end encryption
✓ Correct
B
Disabling all QoS traffic prioritization for video and voice calls
C
Restricting WAN communication exclusively to local area network subnets
D
Requiring manual command-line configuration on every single branch router individually
💡 Step-by-Step Explanation & Concept Rationale
SD-WAN centralizes control plane management, optimizes application performance over multiple transport links, and enhances security.
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