| Year/Subject | Computer Networks and Information Security | ||
| Easy | Medium | Difficult | |
| 2015 MARCH-CS Scientist-C | 1.Communication 2.Repitors 3.MIs 4.Cables | — | 1.Network layer |
| 2016 MARCH-CS/IT/EC-STA | 1.Transmissions 2.mis 3.Power spectrum 3.Amplifier(3) 4.Zener diode 5.Bipolar transistor | 1.Quantization 2.Frequency 3.FM systems 4.Transmission lines 5.Diode 6.MIs(2) 7.Resistors | 1.MIs 2.Transmission 3.modulation(2) 4.Spectrum 5.Spectral density |
| 2016 MARCH-CS/IT-Scientist-B | 1.Topology 2.MIs 3.Packet searching | 1.TCP/IP | — |
| 2016 DEC-IT-Scientist-B | 1.CN basics 2.Data link layer 3.Bluetooth 4.Digital communication 5.Mis(2) 6.Application layer | 1.Network layer | — |
| 2016 DEC-CS-Scientist-B | 1.Basics 2.DC 3.AC/DC 4.Digital communication 5.Transmission techniques 6.Bluetooth 7.Mis 8.PCM | — | — |
| 2017 JULY-IT-Scientist-B | — | — | — |
| 2017 JULY-CS-Scientist-B | 1.Digital communication | — | — |
| 2017 OCT-CS-SA | 1.TCP/IP Header 2.Bit Stuffing 3.Channel capacity 4.Digital communication 5.DC(Channel length) | 1.Error Correcting and Detection 2.DC(SNR) 3.DC(Modulation & Demodulation) 4.DC(Z-Transform) 5.DC(Frequency) 6.DC(PCM) 7.DC(feedback control system) | 1.Bandwidth |
| 2017 OCT-IT-SA | 1.BIt Stuffing 2.DC(Ideal op-amp) 3.Channel length | 1.Time division switch 2.Subnet masking 3.DC(SNR channel capacity) 4.DC(SNR) 5.MOdulation 6.DC(Z-Transform) 7.DC(fundamental frequency) 8.PCM 9.Feedback control system | 1.DC(FM Signal) |
| 2017 DEC-CS/IT-STA | 1.UDP user datagram 2.Closed loop control 3.classless addressing 4.Wireless LAN 5.PGP 6.Subnet masking 7.Acknowledgement field in a segment 8.Subnet masking 9.Routing technique 10.layer basics 11.Congestion control 12.IPV4 Addressing 13.Ethernet destination address 14.Crypt basics 15.Fragmentation | 1.Classful subnet mask | 1.DC(Fm signal) |
| 2017 DEC-CS/IT-Scientist-B | — | — | — |
| 2018 DEC-CS/IT-STA | 1.Application layer(SNMP) 2.Subnet mask 3.Firewall types 4.Routing protocol 5.Communication(frequency hopping) | — | 1.Subnet masking |
| 2018 DEC-CS/IT-Scientist-B | 1.IP datagram 2.Subnet Mask 3.Communication 4.Protocols basics 5.Transport layer basics 6.IP Address WAN 7.CRC 8.Baud Rate | — | — |
