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Download Cisco : 400-101 Questions & Answers as PDF & Test Software

Last Updated: Sep 12, 2026

No. of Questions: 150 Questions & Answers with Testing Engine

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Go To 400-101 Questions

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Our Online Test Engine & Self Test Software of TestSimulate 400-101 actual study materials can simulate the exam scene so that you will have a good command of writing speed and time. Then multiple practices make you perfect while in the real Cisco 400-101 exam. The package practice version will not only provide you high-quality 400-101 exam preparation materials but also various studying ways.

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Reading notes is one thing; performing under exam conditions is another. The TestSimulate test engines recreate the pace and pressure of the 400-101 exam environment with timed practice modes, and the 150 Cisco CCIE Routing and Switching Written practice questions give you a full rehearsal before exam day.

Cisco 400-101 Exam Overview:

Certification Vendor:Cisco
Exam Name:CCIE Routing and Switching Written Exam v5.1
Exam Number:400-101
Related Certifications:CCIE Routing and Switching
CCIE
Exam Format:Drag-and-drop, Testlets, Multiple-choice single/multiple answer, Simulations
Real Exam Qty:90–110
Exam Price:$400 USD
Available Languages:English
Certificate Validity Period:3 years from pass date
Exam Duration:120 minutes
Passing Score:790 / 1000 scaled score
Recommended Training:Cisco Official Training
CCIE Routing and Switching Prep
Exam Registration:Cisco Learning Network
Pearson VUE Registration
Sample Questions:Cisco 400-101 Sample Questions
Exam Way:Delivered via Pearson VUE; onsite proctored test center exam; retired effective February 23, 2020
Pre Condition:No formal prerequisites; written exam required before attempting CCIE Routing and Switching Lab Exam
Official Syllabus URL:https://www.cisco.com/c/dam/en_us/training-events/le31/le46/cln/marketing/exam-topics/ccie-rs-v5_1-etv1_1.pdf

Cisco 400-101 Exam Syllabus Topics:

SectionWeightObjectives
VPN Technologies10%- IPsec, GRE, DMVPN
  • 1. VRF-lite, VRF-aware services
    • 2. GET VPN, FlexVPN
      • 3. MPLS, L3VPN, L2VPN
        Evolving Technologies10%- Network virtualization
        • 1. SDN, programmability, APIs
          • 2. Network automation tools
            • 3. Cloud connectivity
              Infrastructure Services5%- Network address translation
              • 1. First Hop Redundancy Protocols (HSRP, VRRP, GLBP)
                • 2. SNMP, NetFlow, IP SLA
                  • 3. Network Time Protocol
                    • 4. Quality of Service mechanisms
                      Network Principles10%- Network theory
                      • 1. Cisco Express Forwarding (RIB/FIB/LFIB/Adjacency)
                        • 2. IOS vs IOS XE architecture
                          • 3. Control plane vs Forwarding plane
                            • 4. IP operations (ICMP, fragmentation, TTL, MTU)
                              • 5. TCP operations (MSS, PMTU, windowing)
                                Infrastructure Security10%- Control plane policing
                                • 1. Device hardening, access control lists
                                  • 2. Routing protocol authentication
                                    • 3. Unicast Reverse Path Forwarding
                                      • 4. AAA, TACACS+, RADIUS
                                        Layer 3 Technologies40%- IPv4 and IPv6 addressing
                                        • 1. BGPv4 and BGP for IPv6
                                          • 2. Route redistribution, filtering, summarization
                                            • 3. EIGRP for IPv4 and IPv6
                                              • 4. Multicast routing (PIM, IGMP, MSDP)
                                                • 5. Static routing, RIP, OSPFv2/v3
                                                  Layer 2 Technologies15%- LAN switching
                                                  • 1. UDLD, LLDP, CDP, SPAN/RSPAN/ERSPAN
                                                    • 2. Switch security, private VLANs, storm control
                                                      • 3. EtherChannel, LACP, PAgP
                                                        • 4. VLANs, trunking, DTP, VTP
                                                          • 5. Spanning Tree Protocol (802.1D, PVST+, RSTP, MSTP)

                                                            400-101 Certification Exam — Your Questions, Answered

                                                            The 400-101 exam is the official Cisco exam behind Cisco CCIE Routing and Switching Written — passing it earns you the CCIE Routing and Switching certification, a credential positioned at the Expert level. It is built for candidates who want to validate the skills measured by Cisco CCIE Routing and Switching Written. Depending on your track, the exam is also linked to the CCIE Routing and Switching and CCIE certifications, so one pass can move you toward more than one Cisco credential.

                                                            The 400-101 exam presents 90–110 questions to be completed within 120 minutes. That pace leaves little room for second-guessing: read each question carefully on the first pass, flag the ones you want to revisit, and keep moving instead of stalling on a single item. Before exam day, run at least one full timed session in the TestSimulate desktop or online test engine with a comparable question load — a steady rhythm under the clock is a trainable skill, and it is often what separates a pass from a near miss.

                                                            To pass the 400-101 exam you need 790 / 1000 scaled score, and the official registration fee is $400 USD. Keep in mind that a failed attempt means paying that fee again in full — retakes are not discounted. Given the cost, self-test before you book: if you can score comfortably above the passing mark on two or three consecutive timed TestSimulate practice tests, your budget is far better spent on the exam itself than on a retake.

                                                            No formal prerequisites; written exam required before attempting CCIE Routing and Switching Lab Exam Because Cisco revises its certification programs from time to time, treat this as a starting point rather than the final word. Confirm the current eligibility requirements on the official Cisco exam page before you register.

                                                            Registration for the 400-101 exam is handled through the official channels below:

                                                            Delivery method: Delivered via Pearson VUE; onsite proctored test center exam; retired effective February 23, 2020 — pick the option that suits you best when booking your slot.

                                                            Cisco points Cisco CCIE Routing and Switching Written candidates toward the following official courses:

                                                            Official courses build the foundation; pairing them with the 150 400-101 practice questions from TestSimulate turns that knowledge into exam-day readiness.

                                                            Yes. A free PDF demo of the 400-101 practice questions is available, so you can check the question style and answer quality before spending anything. Every purchase also includes 365 days of free updates — whenever Cisco adjusts the Cisco CCIE Routing and Switching Written blueprint, your material is refreshed at no cost during that period. After the first year, you can extend the update service at a 50% discount from your member zone.

                                                            TestSimulate backs your purchase with a 100% Money Back Guarantee. If you take the corresponding exam within 60 days of purchase and do not pass, you can claim a full refund by submitting a scanned copy of your exam enrollment slip together with the official Score Report PDF within 2 days of your exam date; approved claims are processed within 7 days. The guarantee applies only to the exam matching your purchase, the candidate name must match the payer name, and it does not cover attempts taken within 3 days of purchase, candidates who downloaded the material but never sat the exam, expired orders, or free materials. If you would rather keep preparing, you can exchange the product for two free exam preparation packages of equal value and keep the update service on your original purchase.

                                                            Delivery is instant: your download is available right after payment, and a copy is emailed to you within one minute. If nothing arrives within 2 hours, check your spam folder and contact our support team. There is no limit on the number of computers you can install the software on.

                                                            The Cisco CCIE Routing and Switching Written syllabus is organized into 7 domains. Among the headline areas are Infrastructure Services (5%), Evolving Technologies (10%), Layer 2 Technologies (15%). Rather than copying every subtopic here, we keep the complete, current outline in the Exam Topics section above — work through it domain by domain with the TestSimulate 400-101 practice questions so nothing on the blueprint catches you off guard.

                                                            Cisco CCIE Routing and Switching Written Sample Questions:

                                                            Question #1

                                                            Drag and drop the logical components of a traditional SDN infrastructure into the correct order, similar to the Open System interconnection model (OSI model) working your way up from the network infrastructure layer

                                                            Answer:

                                                            Question #2

                                                            Drag and drop the EIGRP query condition on the left to the corresponding action taken by the router on the right.

                                                            Answer:

                                                            Question #3

                                                            What are two characteristics of RPL, used in IoT environments? (Choose two)

                                                            • A. It is link-state protocol
                                                            • B. It is a hybrid protocol
                                                            • C. It is a distance-vector protocol
                                                            • D. It is an interior Gateway Protocol
                                                            • E. It is an Exterior Gateway Protocol
                                                            Answer: C,D
                                                            Question #4

                                                            Which three options describe characteristics of a link state routing protocol? (Choose three)

                                                            • A. It provides faster convergence as opposed to distance vector routing protocols.
                                                            • B. It is topology driven and has an overall overview of the network.
                                                            • C. It uses hop count in the metric calculation to determine the best path.
                                                            • D. It is better in detecting suboptimal routing.
                                                            • E. It uses cost in the metric calculation to determine the best path.
                                                            • F. It only has a neighbor routing table.
                                                            Answer: A,B,E
                                                            Question #5

                                                            Refer to the exhibit.

                                                            Your network uses an MPLS VPN backbone with OSPF routing between all PE and CE routers and on the 10Mb backup Inks between the CE routers. You notice that traffic from CE3 to CE2 and CE4 is flowing over the backup links instead of the higher-bandwidth MPLS VPN backbone even when the is up.
                                                            What change can you make to ensure that traffic uses the MPLS VPN backbone instead?

                                                            • A. Configure a 1GB sham link between PE2 and PE4.
                                                            • B. Configure a lower cost metric on the provider network's OSPF-to-BGP redistribution.
                                                            • C. Configure 1Gb sham links between PE3 and PE4 and between PE3 and PE2.
                                                            • D. Configure internal BGP on PE2, PE3 and PE4.
                                                            Answer: C
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