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Which two actions influence the EIGRP route selection process? (Choose two.) - Correct Answer:
- The router calculates the feasible distance of all paths to the destination route.
- The router calculates the best backup path to the destination route and assigns it as the feasible successor. Which two outcomes are predictable behaviors for HSRP? (Choose two.) - Correct Answer:
- The two routers negotiate one router as the active router and the other as the standby router.
- The two routers share a virtual IP address that is used as the default gateway for devices on the LAN. How does HSRP provide first hop redundancy? - Correct Answer: It uses a shared virtual MAC and a virtual IP address to a group of routers that serve as the default gateway for hosts on a LAN. In OSPF, what is the default OSPF type for ETHERNET interfaces? - Correct Answer: Broadcast In OSPF, what is the default OSPF type for SERIAL interfaces? - Correct Answer: Point-to-Point Which command enables a router to become a DHCP client? - Correct Answer: ip address dhcp What is the primary difference between AAA authentication and authorization? - Correct Answer: Authentication identifies and verifies a user who is attempting to access a system, and authorization controls that tasks the user can perform.
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Which two encoding methods are supported by REST APIs? - Correct Answer: XML JSON Which two keying mechanisms are available within MACsec? - Correct Answer: SAP MKA What is MACsec? - Correct Answer: MACsec provides Layer 2 encryption on the LAN. It also encapsulates and protects the metadata field that carries the Security Group TAG (SGT). Currently, two keying mechanisms are available: Security Association Protocol (SAP) and MAC Security Key Agreement (MKA). Which two features are supported on the Cisco Adaptive Security Virtual Appliance? - Correct Answer: High Availability Site-to-site VPN Which type of authentication and encryption does SNMPv3 use at the authPriv security level? - Correct Answer: MD5 or SHA authentication with DES encryption Which protocol sends authentication and accounting in different requests? - Correct Answer: TACACS+ Which API uses HTTP messages to transfer data to applications residing on different hosts? - Correct Answer: REST Router A receives several routes to the 192.168.1.0/26 network. Each of the routes is received from a different routing protocol. What route is installed on the routing table?
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What VLAN is used by DTP to negotiate a trunk link when 802.1Q encapsulation is configured on the interface? - Correct Answer: NATIVE VLAN Virtual MAC address of HSRP version 2? - Correct Answer: 0000.0C9F.F00A An API provides data to an administrator from a centralized controller. What network management technique is being used? - Correct Answer: Network Automation What command will automatically enable SSH on a router? - Correct Answer: crypto key generate rsa What Cisco lightweight AP modes provides BSSs? - Correct Answer: local
- Default lightweight AP mode What encryption is used to provide MICs and encryption in WPA2? - Correct Answer: AES CCMP AD of IS-IS? - Correct Answer: 115 What language format is a REST API encoding format that uses HTML-like tags to define blocks of data? - Correct Answer: XML What is a duplex? - Correct Answer: communication system is a point-to-point system of two devices that can communicate with each other in both direction
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What is half-duplex? - Correct Answer: it cannot send and receive data at the same time. Network hubs run in half-duplex mode in order to prevent collisions. Since hubs are rare in modern LANs, the half-duplex system is not widely used in Ethernet networks anymore. What is a full duplex? - Correct Answer: all nodes can send and receive on their port at the same time. There are no collisions in full-duplex mode, but the host NIC and the switch port must support the full-duplex mode What is the IEEE of Bluetooth? - Correct Answer: 802.15 WPAN What is WiMAX and it IEEE? - Correct Answer: - Worldwide Interoperability for Microwave Access
- IEEE 802.16 WWAN In cellular broadband there are two types of cellular networks, what are they? - Correct Answer: Global System for Mobile (GSM) and Code Division Multiple Access (CDMA). GSM is internationally recognized, while CDMA is primarily used in the US. Typically, it is used by rural homeowners and businesses where cable and DSL are not available. It is usually more expensive and requires a clear line of sight. - Correct Answer: Satellite Broadband What is the 802.11 WLAN? - Correct Answer: WiFi/wireless devices are based on IEEE 802. set of protocols and wireless local area network (WLAN) Wi-Fi computer communication in various frequencies
- Radio frequency is 2.4 GHz
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What does Wi-Fi stand for? - Correct Answer: Wireless Fidelity technically, this is not the case. Wi-Fi is simply a trademarked term meaning IEEE 802.11x. What is an Autonomous AP? - Correct Answer: - Standalone devices like a home router. Where the entire WLAN configuration resides on the device.
- Sometimes called thick APs
- do not require a controller to control the AP and it use WLSE for management software
- use for a network that requires only a couple of access points. What does WLC stand for? - Correct Answer: Wireless LAN Controller What does AS stand for? - Correct Answer: Autonomous System What are Controller-based APs? - Correct Answer: - These devices require no initial configuration and are often called lightweight APs (LAPs).
- Also called thin APs
- Centralized management, configuration, encryption, updates and policy settings through a centralized controller LAPs - Correct Answer: Lightweight Access Points LWAPP - Correct Answer: Light Weight Access Point Protocol What is another name for LAPs? - Correct Answer: Controller-based APs
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LAG - Correct Answer: Link Aggregation Group What is MIMO? - Correct Answer: Multiple Input Multiple Output. Uses multiple antennas to increase available bandwidth for IEEE 802.11n/ac/ax wireless networks. Up to eight transmit and receive antennas can be used to increase throughput. Which of the following components are integrated in a wireless home router?
- Access Point
- Switch
- Router
- Range Extender - Correct Answer: Access Point, Switch, Router What is infrastructure mode in WLAN? - Correct Answer: A wireless router or AP connects wireless clients to a wired distribution system. What is API and what does the acronym stand for as well? - Correct Answer: Application Programming Interface (API) An API is software that allows other applications to access its data or services. It is a set of rules describing how one application can interact with another, and the instructions to allow the interaction to occur. Data formats shared between smart devices often use an Application Programming Interface (API There are four types of web service APIs - Correct Answer: Simple Object Access Protocol (SOAP) Representational State Transfer (REST) eXtensible Markup Language-Remote Procedure Call (XML-RPC) JavaScript Object Notation-Remote Procedure Call (JSON-RPC)
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What protocols are unreliable, connectionless and use UDP? - Correct Answer: DNS, DHCP, TFTP, SNMP What is DHCP? - Correct Answer: A protocol used to automate the assignment of IP Address. It stands for Dynamic Host Control Protocol and is the successor to BOOTP. DHCP port number - Correct Answer: 67 What is HSRP? - Correct Answer: HSRP stands for Hot Standby Router Protocol, it was designed for gateway redundancy without addition config on end devices. Routers configured with HSRP present themselves as a single virtual default gateway.
- It is Cisco Proprietary
- has one active router and one standby router What does VRRP stand for? - Correct Answer: Virtual Router Redundancy Protocol Has one master router and multiple backup routers What is VRRP virtual MAC address? - Correct Answer: 0000.5E00.01xx 0000.5E00.01xx, where xx is the value ID for the VRRP group number What is FHRP? - Correct Answer: First-Hop Redundancy Protocol In show ip route command, what letter represents EIGRP? - Correct Answer: D In show ip route command, what letter represents OSPF? - Correct Answer: O
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In show ip route command, what letter represents directly connected routes? - Correct Answer: C In show ip route command, what letter represents static route? - Correct Answer: S In show ip route command, what letter/symbol represents default routes? - Correct Answer: * on a route such as S * 0.0.0.0/0 [1/0] via Fastethernet 0/ In show ip route command, what letter represents local/host connected directly connected? - Correct Answer: L What is PAgP? - Correct Answer: Port Aggregation Protocol is a Cisco proprietary link aggregator protocol that can bundle up to 8 active ports.
- Only uses DESIRABLE and AUTO modes By default the maximum time that a Cisco switch will retain LLDP info before discarding it when it is enabled on an interface is ______ - Correct Answer: 120 seconds By default, a cisco switch will send LLDP advertisements every ____ seconds when LLDP is enabled on an interface - Correct Answer: 30 What is LLDP on a Cisco switch? - Correct Answer: Link Layer Discovery Protocol. OSI layer 2 open standard discovery protocol that is used to facilitate interoperability between Cisco devices and non-Cisco devices. Attributes that can be learned from neighboring devices contain Type, Length, Value (TLV) info including port description, system description and management address.
Updated Exam Questions with
- Host on a /18 and it subnet mask - Correct Answer: 16384; 255.255.192. Answers.
- Host on a /25 and it subnet mask - Correct Answer: 128; 255.255.255.
- Host on a /26 and it subnet mask - Correct Answer: 64; 255.255.255.
- Host on a /27 and it subnet mask - Correct Answer: 32; 255.255.255.
- Host on a /28 and it subnet mask - Correct Answer: 16; 255.255.255.
- Host on a /29 and it subnet mask - Correct Answer: 8; 255.255.255.
- Host on a /30 and it subnet mask - Correct Answer: 4; 255.255.255.
- Host on a /31 and it subnet mask - Correct Answer: 2; 255.255.255.
- Host on a /32 and it subnet mask - Correct Answer: 1; 255.255.255.
- Host on a /17 and it subnet mask - Correct Answer: 32768; 255.255.128.
- Host on a /16 and it subnet mask - Correct Answer: 65536; 255.255.0.
- 10.255.255. What is the reserved ranges on RFC 1918? - Correct Answer: 10.0.0.0-
- 172.16.0.0-172.31.255.
Updated Exam Questions with
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What is the reserved range for loopback addresses? - Correct Answer: 127.0.0.0- 127.255.255. What is the Class A range of addresses? - Correct Answer: 10.0.0.0 - 10.255.255. What is the Class B range of addresses? - Correct Answer: 172.16.0.0 - 172.31.255. What is the Class C range of addresses? - Correct Answer: 192.168.0.0 - 192.168.255. What do unique local IPv6 unicast prefix always begin with? - Correct Answer: FD or FC Because the first 7 bits of a unique local unicast address are always 1111110 They can not be aggregatable nor summarized. What is the address range if a host IP can not obtain a network address via DHCP? - Correct Answer: 169.254.1.0 to 169.254.254. What protocol uses UDP and TCP? - Correct Answer: DNS (Domain Name System) IPv6 multicast address? - Correct Answer: FF00::/ IPv6 Unicast Link-Local address - Correct Answer: FF80::/
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there is no compulsion of using the Cisco devices in both the ends, which means these are interoperable. PPP also supports multiple protocols and support authentication. What is PPP? - Correct Answer: Point-to-Point Protocol (PPP) is a Data Link layer protocol that can be used over either asynchronous serial (dial-up) or synchronous serial (ISDN) media. It uses Link Control Protocol (LCP) to build and maintain data-link connections. Network Control Protocol (NCP) is used to allow multiple Network layer protocols (routed protocols) to be used on a point-to-point connection. The basic purpose of PPP is to transport layer 3 packets across a Data Link layer point-to-point link, and it's nonproprietary. The PPP protocol stack is specified at the Physical and Data Link layers only. In 802.11 wireless topology, what is BSS in Infrastructure? - Correct Answer: Basic Service Set; Consist of a single AP interconnecting all associated wireless clients. The radius of which it covers in it wireless range is called a Basic Service Area (BSA). Layer 2 MAC address of the AP is used to uniquely ID each BSS which is called a Basic Service Set Identifier (BSSID). In 802.11 wireless topology, what is ESS in infrastructure? - Correct Answer: Extended Service Set ESS is ID by a SSID and each BSS is ID by its BSSID. When you need more coverage, two or more BSS can join through a common distribution system (DS) into an ESS. The whole covered area is called an Extended Service Area (ESA). A client in one BSA can now communicate with other clients in another BSA within the same ESS. Like a roaming cell phone user may move from one BSA to another and it would be seamless Since WLAN are half-duplex, what do we use to avoid collision? - Correct Answer: (CSMA/CA) carrier sense multiple access with collision avoidance.
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What is the port number of RADIUS? - Correct Answer: 1812 for authentication 1813 for accouting 1645/1646 for UDP ports AD of directly connected routing - Correct Answer: 0 AD of static route - Correct Answer: 1 AD of internal EIGRP - Correct Answer: 90 AD of OSPF - Correct Answer: 110 AD of RIP - Correct Answer: 120 AD of External EIGRP - Correct Answer: 170 What parameter does RIP use to calculate metric? - Correct Answer: Hop count What parameter does EGIRP use to calculate metric? - Correct Answer: bandwidth, delay What parameter does OSPF use to calculate metric? - Correct Answer: cost Characteristic of distance vector? - Correct Answer: - sends entire routing table
- slow convergence
- doesn't know network topology
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What is EIGRP? - Correct Answer: Enhanced Interior Gateway Routing Protocol. Is an advanced distance vector routing protocol. EIGRP supports classless routing and VLSM, route summarization, incremental updates, load balancing and many other useful features. It is a Cisco proprietary protocol, so all routers in a network that is running EIGRP must be Cisco routers. What metric does EIGRP use? - Correct Answer: bandwidth and delay What metric does OSPF use to calculate the best path? - Correct Answer: Cost What metric does RIP use to calculate best path? - Correct Answer: Hop count How do you untag a VLAN? - Correct Answer: You set it as a native VLAN What is RFC 1918? - Correct Answer: RFC 1918 is Address Allocation for Private Internets The Internet Assigned Numbers Authority (IANA) has reserved the following three blocks of the IP address space for private Internets: 10.0.0.0/8, 172.16.0.0/12 and 192.168.0.0/ What is Cisco ACI? - Correct Answer: Application Centric Infrastructure What layer is MPLS considered and what does it stand for? - Correct Answer: Layer 2.5; Multiprotocol Label Switching What is another name for a Hypervisor? - Correct Answer: VMM (Virtual Machine Monitor)
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What is CRC stand for? - Correct Answer: Cyclic Redundancy Check What is another name/nickname for a dashboard? - Correct Answer: A single pane of glass What are the Northbound APIs? - Correct Answer: OSGi REST What are the Southbound APIs? - Correct Answer: NETCONF OnePK OpenFlow OpFlex What does the CAM table use to populate it? - Correct Answer: The source MAC address Switches make forwarding decisions based on the_______ contained in a frame's header. - Correct Answer: Destination MAC Address What is SaaS? - Correct Answer: Software as services enables it consumer to access applications running in the cloud infrastructure but does not enable the consumer to manage the cloud infrastructure or the configs of the provided applications. A good example is a company license an office suite, including email service, that is delivered to the end user through a web browser. What is IaaS? - Correct Answer: Infrastructure as a Service
