Tests Catalog

Advanced radio access: 5G NR numerology and beams, CU/DU split, Xn mobility, massive MIMO, NSA vs SA at the RAN, RACH and scheduling, ICIC/eICIC, uplink power control, mmWave constraints, and QoS/slicing at the air interface. Mix of single-answer and multiple-answer items; multi-select questions ask you to select every correct statement.

Radio access planning and operation: RSRP/RSRQ/SINR, PCI and neighbors, handover types, MIMO and carrier aggregation basics, tilt, backhaul/fronthaul, DRX, and VoLTE at the RAN edge. Mix of single-answer and multiple-answer items; multi-select questions ask you to select every correct statement.

Foundations of cellular radio access: RAN role, cells and sectors, UE–base-station links, uplink/downlink, bands, and basic coverage concepts. Mix of single-answer and multiple-answer items; multi-select questions ask you to select every correct statement.

Advanced IP routing: BGP path selection, iBGP/eBGP roles, communities, multihoming, MPLS LDP-IGP interaction, fast reroute, route reflectors, dampening concepts, and control- versus data-plane separation. Mix of single-answer and multiple-answer items; multi-select questions ask you to select every correct statement.

Intermediate IPv4 routing: administrative distance, metrics, recursive next hops, ECMP, summarization, floating statics, ICMP unreachables, RIB versus FIB, and introduction to policy routing and VRF-lite. Mix of single-answer and multiple-answer items; multi-select questions ask you to select every correct statement.

IPv4 forwarding fundamentals: routing tables, next hops, default and static routes, connected subnets, TTL, longest-prefix match, and default gateways. Mix of single-answer and multiple-answer items; multi-select questions ask you to select every correct statement.

Advanced OSI reasoning for carrier design and NOC: MPLS VPN and overlays, segment routing, mobile 5G interfaces, NFV placement, QoS and timing, cross-layer failure analysis, and lawful intercept boundaries. Mix of single-answer and multiple-answer items; multi-select questions ask you to select every correct statement.

Intermediate OSI layering in carrier and mobile networks: PDUs, encapsulation, MPLS and tunnel overlays, SIGTRAN/SCTP, SIP/RTP placement, QoS markings, and structured fault isolation. Mix of single-answer and multiple-answer items; multi-select questions ask you to select every correct statement.

OSI and TCP/IP layering for telecom networks: where protocols sit, what each layer does, and how faults map to layers. Mix of single-answer and multiple-answer items; multi-select questions ask you to select every correct statement.