4A0-100 Exam Questions
388 real 4A0-100 exam questions with expert-verified answers and explanations. Page 6 of 8.
- Question #251Data Link Protocols
What must be configured before a LAG becomes operational?
LAGlink aggregationport configurationduplex settings - Question #252Data Link Protocols
Which of the following is NOT characteristic of Ethernet?
EthernetCSMA/CDbroadcast technologyMAC addressing - Question #253Data Link Protocols
What is the function of Layer 2?
Layer 2data link layerframe encapsulationOSI model - Question #254Data Link Protocols
What type of MAC address is 01:00:5e:01:01:01?
MAC address typesmulticast MACOUILayer 2 addressing - Question #255Data Link Protocols
A switch with the MAC FDB shown in the exhibit receives an Ethernet frame with source MAC address 00:00:8c:01:00:0a and destination MAC address ff:ff:ff:ff:ff:ff. On which ports is...
MAC FDBbroadcast frameswitch forwardingframe flooding - Question #256Routing Fundamentals
Which of the following statements about the IP forwarding process is TRUE?
IP forwardingforwarding tableARP tabledestination address lookup - Question #257IP Network Fundamentals
Which of the following if a Layer 3 protocol?
OSI layersLayer 3IP protocolprotocol stack - Question #258Network Addressing
A given network with address 200.12.30.0 and network mask 255.255.255.0 is divided into 16 equal- sized subnetworks. How many hosts does each subnetwork support?
subnettingCIDRhost countsubnet calculation - Question #259Network Addressing
Which of the following involves grouping a number of routes with common prefixes into a single route advertisement?
route summarizationprefix aggregationVLSMIP addressing - Question #260Network Addressing
Which of the following is a characteristic of a subnet created with a prefix length of /32?
/32 prefixhost routeloopback interfacesubnet mask - Question #261Network Addressing
Which of the following statements about IP addressing is TRUE?
classless addressingVLSMIP hierarchysubnet mask - Question #262Network Addressing
What is the most specific aggregate prefix for the following 4 subnets? 100.1.1.4/30 100.1.1.8/30 100.1.1.12/30 100.1.1.16/30
route summarizationsubnet aggregationCIDR notationprefix calculation - Question #263Network Addressing
Network 201.148.104.0/21 is subnetted using a /23 mask. How many subnets and host addresses per subnet will be obtained with this mask?
subnettingvariable length subnet masksubnet calculationhost addresses - Question #264Network Addressing
A network with address 208.40.224.0/24 is divided into /28 subnets. What is the host address range of the fourth subnetwork?
subnetting/28 subnet maskhost address rangesubnet enumeration - Question #265IP Network Fundamentals
Which of the following about the displayed IP filter is TRUE?
IP filterACLpacket matchingsource address filtering - Question #266Routing Fundamentals
Router R3 receives an LSA with the sequence number 111 from router R4 and then receives another copy of the LSA with a sequence number 112 from router R2. What does router R3 do wi...
OSPFLSA sequence numberslink state databaseLSA flooding - Question #267Routing Fundamentals
Router R5 receives four route updates for the same prefix 10.10.10.1/32. Which of the four routes will be installed in R5's routing table?
route selectionadministrative distancerouting tableroute preference - Question #268Routing Fundamentals
Which of the following egress interfaces is used to forward a packet with destination IP address 140.10.0.110?
longest prefix matchrouting table lookupIP forwardingprefix matching - Question #270IP Network Fundamentals
Which of the following describes an IP filter on the Nokia 7750 SR?
IP filterNokia 7750 SRpacket filteringfilter policy - Question #271Network and Infrastructure Performance Management Integration
Which of the following statements about OSPF routing protocol is FALSE?
OSPFlink state protocolrouting protocolhop count - Question #272Routing Fundamentals
Which of the following protocols can be used to force traffic from router R2 to use the direct link to router R4?
static routingtraffic engineeringpath controlprotocol selection - Question #273Routing Fundamentals
What next-hop should be used on CR1 to configure a default route to router R1?
default routestatic routingnext-hoprouting configuration - Question #274Routing Fundamentals
Which of the following routing protocols SHOULD NOT be used between routers R1 and R2?
routing protocol selectionOSPFBGPprotocol applicability - Question #275Routing Fundamentals
What type of BGP sessions does router R2 need to establish in order to reach networks 192.168.1.0/27 and 192.168.5.0/27?
BGPiBGPeBGPBGP session types - Question #276Routing Fundamentals
What is the next-hop for network 172.16.1.0/24 installed in router 2's routing table?
routing tablenext-hopBGP route lookupIP forwarding - Question #277Service Fundamentals
On what type of device/router is a Service Access Point (SAP) defined?
SAPPE routerMPLS servicesservice access point - Question #278Service Fundamentals
Which of the following is TRUE regarding routers R2 and R3 in the pictured MPLS network?
MPLSlabel operationsLSPlabel push swap pop - Question #279Service Fundamentals
Which of the following statements about router R1 is TRUE?
MPLSLERingress LERegress LER - Question #280Service Fundamentals
Which of the following is TRUE about a PE router within a service provider's MPLS network?
PE routerMPLS networkVPNservice provider architecture - Question #281Service Fundamentals
What type of VPN service does a VPRN provide?
VPRNLayer 3 VPNIP routed serviceNokia VPN services - Question #282Service Fundamentals
From a customer's perspective, how does a VPRN service operate?
VPRNcustomer perspectivevirtual private routed networkVPN operation - Question #283IP Network Fundamentals
What is the name for an organization that provides Internet services to its customers?
ISPInternet service providernetwork terminologyservice provider - Question #284Service Fundamentals
What types of addresses are part of encapsulation at the transport layer?
transport layerport numbersencapsulationTCP/UDP - Question #285Service Fundamentals
Which statement describes the primary purpose of TCP?
TCPreliable communicationtransport protocolconnection-oriented - Question #286Service Fundamentals
Which of the following is used for the auto completion of CLI commands in a Nokia 7750 SR?
Nokia 7750 SRCLItab completionrouter interface - Question #287Service Fundamentals
Which of the following shows a typical data packet flow when ingressing a Nokia 7750 SR?
Nokia 7750 SRpacket flowIOMMDA - Question #288Service Fundamentals
On a Nokia 7750 SR, which of the following event log destinations is used to store an event log to the compact flash?
Nokia 7750 SRevent logcompact flashfile destination - Question #289Service Fundamentals
Which of the following tasks can be performed in the boot options file (BOF)?
Nokia 7750 SRboot options fileBOFmanagement port - Question #290Data Link Protocols
What information is used to separate VLANs on a VLAN trunk that connects multiple VLANs?
VLANVLAN trunkVLAN tag802.1Q - Question #291Data Link Protocols
How do ATM and Frame-Relay protocols differentiate multiple customers or traffic types on the same physical wire?
ATMFrame Relayvirtual circuitstraffic separation - Question #292Data Link Protocols
Which Ethernet frame field allows the transmitter and receiver to synchronize communications?
Ethernet framepreamblesynchronizationframe structure - Question #293Data Link Protocols
Which of the following is required if devices on different VLANs wish to communicate with each other?
VLANinter-VLAN routingrouterLayer 3 - Question #294Data Link Protocols
In what type of network is a broadcast storm likely to occur?
broadcast stormSTPredundant pathsEthernet - Question #295Data Link Protocols
Which of the following best describes a hub?
hubLayer 1repeaternetwork device - Question #296Network Addressing
What is the purpose of a multicast address?
multicastmulticast addressgroup addressingIP addressing - Question #297Service Fundamentals
What is the sequence of events that must occur for a client to receive an IP address using DHCP?
DHCPDORA processIP address assignmentdynamic addressing - Question #298Network Addressing
How many subnets and host addresses are obtained by subnetting network 201.148.26.0/24 using a /26 subnet mask?
subnettingCIDR/26 masksubnet calculation - Question #299Network Addressing
Which of the following statements about ARP request and ARP response messages is TRUE?
ARPbroadcastunicastaddress resolution - Question #300IP Network Fundamentals
Which of the following is a characteristic of the IP layer?
IP layerconnectionlessOSI modelnetwork layer - Question #301Network and Infrastructure Performance Management Integration
Which of the following is a characteristic of a subnet created with a /31 prefix?
/31 prefixsubnetbroadcast addresspoint-to-point link