Practical Guide of CCIE Job Interview (Part 2).

SPOTO CLUB always offers the latest information about IT certification and job experience. We hope to help more people to pass the certification and find a suitable and promising job.

In the previous issue [Top 300+ CCIE Interview Questions], SPOTO has shared with you about the topics of "IP Routing", "OSPF" and "EIGRP". View the first period of content:

►"IP Routing"

► “OSPF”

► “EIGRP”

Please click: https://cciedump.spoto.net/blog-456

In this issue, SPOTO will bring you CCIE interview questions about the topics of “QOS” and “BGP”.

QOS

► What is Quality of Service (QoS)?

► What are congestion, delay, and jitter

► What is the MQC?

► What does the service-policy is supported only on VIP interfaces with DCEF enabled message mean?

► How many classes does a Quality of Service (QoS)policy support

► How are routing updates and Point-to-Point Protocol (PPP) / High-Level Data Link Control (HDLC) keepalives processed when a service policy is applied?

► Is Quality of Service (QoS) supported on interfaces configured with Integrated Routing and Bridging (IRB)?

► What is Quality of Service (QoS)pre-classification?

► Which packet header fields can be remarked? What values are available?

► Can I prioritize traffic based on the URL?

► What platforms and Cisco IOS software versions support Network Based Application Recognition (NBAR)?

► What is the purpose of queueing?

► How do Weighted Fair Queueing (WFQ) and Class Based Weighted Fair Queueing (CBWFQ) operate?

► If a class in Class Based Weighted Fair Queueing(CBWFQ) is not using its bandwidth, can other classes use the bandwidth? Is Class Based Weighted Fair Queueing (CBWFQ) supported on sub interfaces?

► Is Class Based Weighted Fair Queueing (CBWFQ)supported on sub interfaces?

► What is the difference between the priority and bandwidth statements in a policy-map?

► How is the queue limit calculated on the Flex Anand Versatile Interface Processors (VIP)?

► How do you verify the queue-limit value?

► Can I enable fair queueing inside a class?

► What commands can I use to monitor queueing?

► RSVP can be used in conjunction with Class Based Weighted Fair Queueing (CBWFQ). When both Resource Reservation Protocol (RSVP)and CBWFQ are configured for an interface, do RSVP and CBWFQ act independently, exhibiting the same behavior that they would if each were running alone? RSVP seems to behave as if CBWFQ is not configured regarding bandwidth availability, assessment, and allocation.

► Can I enabled Weighted Random Early Detection(WRED) and Low Latency Queueing (LLQ), or Class Based Weighted Fair Queueing(CBWFQ) at the same time?

► How can I monitor Weighted Random Early Detection(WRED) and see it actually taking effect?

► What is the difference between policing and shaping

► What is a token bucket and how does the algorithm work?

► With a traffic policer such as class-based policing, what do Committed Burst (BC) and Excess Burst (Be) mean and how should I select these values?

► How does Committed Access Rate (CAR) or class-based policing decide if a packet conforms or exceeds the Committed Information Rate (CIR)? The router is dropping packets and reporting an exceeded rate even though the conformed rate is less than the configured CIR.

► Are the burst and queue limit independent of each other?

► What values should I select for Committed Information Rate (CIR), Committed Burst (BC), Excess Burst (Be), and MinimumCIR (MinCIR)?

► Does Priority Queueing on the Frame Relay main interface work in Cisco IOS 12.1?

► Does Frame Relay Traffic Shaping (FRTS) work with Distributed Cisco Express Forwarding (dCEF) and Distributed Class Based Weighted Fair Queueing (dCBWFQ)?

► Where do I apply a service policy with Class Based Weighted Fair Queueing (CBWFQ) and Low Latency Queueing (LLQ) on an Asynchronous Transfer Mode (ATM) interface?

► What bytes are counted by IP to Asynchronous Transfer Mode (ATM) Class of Service (COs) queueing?

► How many Virtual Circuits (VCS) can support a service policy simultaneously?

► Which Asynchronous Transfer Mode (ATM) hardware supports IP to ATM Class of Service (COs) features including Class Based Weighted Fair Queueing (CBWFQ) and Low Latency Queueing (LLQ)?

► How does Link Fragmentation and Interleaving (LFI)work?

► What tools can I use to monitor Voice over IPperformance?

BGP

► How do I configure BGP?

► How do I configure BGP with the use of a loopback address

► What is the order of preference of attributes when some or all are applied to one neighbor in BGP?

► What does a next hop of 0.0.0.0 mean in the show ip bgp command output?

► What are the well-known communities of the BGP community attribute?

► What formats can I use to configure the BGP community attribute

► How does BGP behave differently with auto-summary enabled or disabled?

► How can I verify if a BGP router announces its BGP networks and propagates them to the global BGP mesh?

► When and how should I reset a BGP session

► Is there any special configuration needed on PIX/ASA to allow BGP sessions through it?

► What is an autonomous system (AS) number and how do I obtain one?

► What is the BGP path selection criteria?

► What is the difference between always-compare-med and deterministic-med?

► Do internal BGP (iBGP) sessions modify the next hop?

► Do external BGP (eBGP) sessions between confederations modify the next hop

► In external BGP (eBGP) sessions, which IP address is sent as the next hop?

► Does the route reflector change the next hop attribute of a reflected prefix?

► How can I announce a prefix conditionally to one ISP only when I lose the connection to my primary ISP?

► How can I configure BGP to provide load sharing and redundancy in my network?

► How much memory should I have in my router to receive the complete BGP routing table from my ISP?

► What are the benefits of configuring BGP peer groups?

► Why do I see the same route twice from the same peer in BGP?

► What is synchronization, and how does it influence BGP routes installed in the IP routing table?

► How do I know which Cisco IOS software release supports a particular BGP feature?

► How can I set the Multi Exit Discriminator (MED) value on prefixes advertised to external BGP (eBGP) neighbors to match the Interior Gateway Protocol (IGP) next hop metric?

► What is the default BGP Connect Retry timer, and is it possible to tune the BGP Connect Retry timer?

► What does r RIB-Failure mean in the show ip bgp command output?

► How can I redistribute internal BGP (iBGP) learned default-route(0.0.0.0/0) route into EIGRP/OSPF/IS-IS?

► How can I filter all IP routes advertised to a BGP neighbor except the default route 0.0.0.0/0

► How to resolve the error Protocol not in this image?

► BGP: timer-wheel running slow by 1 tick appears in the debug output.

► Is it possible to track an interface and change the route availability?

► How does IP RIB Update allocate memory

► What is the command to see IPv6 BGP neighbors?

► In regards to the removal of the static route “ip route10.150.0.0 255.255.0.0 Null0”, does no auto-summary in BGP cause all subnets of10.150.0.0 to be advertised?

► Why are there no statistic results when I use the debug bfdevents and debug bfd packets commands?

► Does the router have to be restarted after a new BGP Neighbor Maximum Prefix is configured?

► Is there a command to check the advertised routes along with the prepend of the AS-paths?

► How does neighbor soft-reconfiguration inbound command function?

► What does the %BGP-3-NOTIFICATION: sent to neighbor *A.B.C. Passive 6/0 (cease) 0 bytes error message mean?

► What does the %IPRT-3-ROUTEINSERTERROR: Error inserting routing entry error message mean?

► Does GSR with Cisco IOS-XR support the VPLS-BGP auto-discovery feature as a Route Reflector?

► How do I debug routes for a particular vrf in the Cisco IOS-Environment?

► What is the difference between when a route is injected in BGPvia redistribute command or a network command?

► How do I verify Layer 4 forwarding summary information?